Nolan is a running back on his football team. He gained 13 yards on his first carry. He lost 12 yards on his second carry and he gained 20 yards on his third carry. How many total yards did Nolan carry the ball? Need help NEOW

21

Step-by-step explanation:

13-12=1+20=21

hope this helps!!

let soccer = x and golf = y

part a

1st equation: x + y = 125

2nd equation: x = y +45

part b

replace x in the 1st equation with the 2nd one:

y + 45 + y = 125

simplify:

2y + 45 = 125

subtract 45 from each side:

2y = 80

divide both sides by 2:

y = 80/2

y = 40

she plays golf for 40 minutes.

part c

no because she plays soccer for 45 minutes longer than golf 40 +45 =   85 minutes, not 80 minutes.

the answer will be the last one