1:A puppy weighed 13 pounds, at the next checkup the puppy weighed 21.5 pounds. How much weight did the puppy gain?
2:The car had 13 gallons of gas in it. After a long drive, the car now has 6 gallons of gas in it, how much gas did the car use?

1: 8.5

2: 7

Step-by-step explanation:

21.5-13= 8.5

13-6=7

(Hope this helps!)

1:8.5 pounds 2:7 gallons

Step-by-step explanation:

1:21.5-13

2: 13-6

-7

step-by-step explanation:

x^2 + 18x + 74 = (x + 9)^2 - 81 + 74

= (x + 9)^2 - 7.

so q = -7.

{3 + i, 3 - i, 3, -1}

step-by-step explanation: