Answer:
a.
b.
c.
Step-by-step explanation:
a. In the account are 6 deposits of the paid that Tom gets each month and the initial $1240. Let be the paid Tom gets each month, then:
Solving for :
b)Let be pounds contained in the first box,
the pound in the second box,
the pounds in the third box and
the pound in the fourth box, then:
Substitute the value of in the last equation:
Substitute all the equation in the first and solve for :
Solving for x2,x3, and x4:
c) Simon is ordering 5 cans and 5 racquets, the total from the cans is 5(4)=$20. Let x be the cost of each racquet,
Solving for x: