Question

PLEASE HELP ME !!

Abigail has $30.00 to buy groceries. She needs to buy some apples, some bananas, and 3 pounds of potatoes. Fuji apples are $1.79 a pound, bananas are $0.36 each, and potatoes are $2.99 for a 3 lb. bag. If a represents the number of pounds of apples Abigail buys and b represents the number of bananas she buys, which expression represents the amount of change she receives after her purchases? Choices are
A. 30.00-a-b
B. 1.79a + 0.36b+2.99
C. 30.00 – (1.79a + 0.36b + 2.99)
D. 30.00 + (1.79a + 0.36b + 2.99)

Answer 1

C. 30.00 - (1.79a + 0.36b + 2.99) (I think that's correct)

Answer 2

`30-(1.79a+0.36b+2.99)`

Explanation:

Let a represents the number of pounds of apples Abigail buys

Cost of 1 pound of apple = $1.79

So, Cost of a pounds of apple = 1.79a

Let b represents the number of bananas she buys,

Cost of 1 pound of banana = $0.36

Cost of b pounds of banana = 0.36b

Abigail buys 3 pounds of potatoes

Cost of 3 pounds of potatoes = $2.99

So, Total cost =
`1.79a+0.36b+2.99`

Abigail has $30.00 to buy groceries.

So, the amount of change she receives after her purchases=
`30-(1.79a+0.36b+2.99)`

So,Option C is correct.

Hence The expression represents the amount of change she receives after her purchases is
`30-(1.79a+0.36b+2.99)`