9.)Cici went shopping and spent a total of $45.28. She paid with a $100 bill. How much change did she receive? Write an
expression and solve.

Cici received $54.72 dollars in change

Step-by-step explanation:

$100 (what she payed with) - $45.28 (how much she spent) = $54.72 (how much she got back in change)

Total costs for 49 baskets = $300

She make 145 dessert baskets the week before.

Step-by-step explanation:

Given : Fixed weekly costs for rent and electricity = $200

The ingredients for one dessert basket costs = $2.50

Let x be the number of baskets made by Casey, then the total weekly cost will be :-

Total weekly costs = Fixed weekly cost + Cost of ingredients for one dessert × x

= 200+2.5x

For x= 40

Total weekly costs = $200+$2.5(40)=$200+$100=$300

i.e. Total costs for 49 baskets = $300

Her total costs for the week before 562.50.

i.e.  

Subtract 200 from both sides.

Divide 2.5 from both sides.

Hence, she make 145 dessert baskets the week before.