First, you have to set up two equations.
X + y = 45
18x + 24y = 1,050
To do this, you have to solve for an exponent by cancelling out the other one. To solve for y, you multiply everything in the first equation by -18.
-18x -18y = -810
This cancels out the x and leaves you with 6y = 240. Divide both sides by 6 and you have the number of Yankee hats that were bought.
Then, you have to substitute 40 for y in the first equation and solve for x.
Answer:(B.) $6.00 per 16 ounces
Step-by-step explanation: It's the oz it matters how much ounces it has like it says 16 so 16x6=96 ounces?
Q 4
we know that a pie chart is a circle
we know that a circle is 360 degrees
so we multiply 7/10 with 360 and get the degrees
252 degrees
off topic, question 3 is wrong because if you want to round to 1 sig fig, you would look at the 100ths place to round to the 10th's place so 0.000 (disregard the 9 because it's too far away) rounded up =0
(-7c + 4b) + 2b (-7c - 6b) = -1