Answer:
The Central Bank is trying to increase money supply.
Explanation:
When the Central Bank makes moves to increase reserves, it means that it is simply trying to mop up excess cash from the economy to fight inflation. Spiking inflation means that the power of a currency is gradually being eroded. The Central Bank cannot allow this to happen so it hits the "Reduce Money In Circulation" button. It does this by reviewing upwards, the money reserves which commercial banks must hold with the Central Bank.
It can also increase the rate at which it lends to the Commercial Banks and Investment houses. Commercial Banks, in turn, transfer the additional cost of borrowing to businesses who will seek loans. This slows down the rate at which money is pumped into the economy.
In the question, however, we notice that the Central Bank has enervated its reserves. This means that it is pumping more money into the economy. This economic move may have been executed to prevent the economy from slipping into a recession or simply to stimulate the economy.
In the short run, increased money supply means, businesses have more access to funds from commercial banks. More funds mean, more investment. Increased investment spending means the businesses will need to expand operations, hire more staff, and the multiplier effect goes on and on.
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Answer:
90 suits per week must be produced and sold to achieve the maximum profit of $2,850.
Explanation:
The profit function is given by the revenue function minus the cost function:

The number of suits, x, for which the derivate of the profit funtion is zero, is the production volume that maximizes profit:

The profit generated by producing 90 suits is:

Therefore, 90 suits per week must be produced and sold to achieve the maximum profit of $2,850.
B.
You must simply follow your equilibrium point. If the new demand curve is at D2, then you find the new intersection formed by D2 and S1.