Derek spends $3 on breakfast and $5.50 on lunch every school day. How much does he spend on breakfast and lunch in a school week?

Answer

42.5 is the answer

Step-by-step explanation:

this question has several steps. Derek goes to school 5 days a week. Add 5.50 and 3 together and multiply it by 5.

5.50 + 3= 8.50

8.50 × 5= 42.5

add all the numbers and check the ones place.

the answer is 486. as the ones place is more than 4, the estimation will be the next 10 ie, 490