Question

At the market, a pear costs b cents and an apple costs 7 cents

Answer 1

Answer:

Randy has to pay $\mathbf{5b-7}$

Step-by-step explanation:

Cost of pear = b

Cost of apple =b-7

Randy buys pears = 4

Apple = 1

We need to find cost in terms of b

So, the equation will be:

$4b+1(b-7)\\4b+b-7\\5b-7$

So, Randy has to pay $\mathbf{5b-7}$