Maria is planning a party. nancy, her friend, suggests that she should order 3 pizzas for every 7 people. if she is expecting 21 people at the party, how many pizzas should she order?

a. 42
b. 9
c. 49
d. 21

exa:

)

3+11

14

step-by-step explanation:

from this example, we can see that subtracting with integers is the same as adding the opposite. we can solve using a number line or by using the saying "keep, change, change" to us solve. it is important to remember that we can subtract a negative and end up with a larger number than we started with.

t

step-by-step explanation:

ever thing time 1 is a multiply by 1 it get