(Help me please) Mike earns $12.50 an hour cleaning houses, if he works from 8:00am to 3:00pm, how much money will he make?

The answer is $ 87.50

total hours= 7

so, 12.50 × 7

= 87.50

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.