The function f is defined by f(x)=2.1x−1.7. use this formula to find the following values of f.
f(c+a)
f(1/3x-2/3)
f(x+2)
f(3c)

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.

cut 138 centimeters off

step-by-step explanation:

250-112 = 138

y + 11 = (1/4)(x + 16)

step-by-step explanation:

do have an equation or graph or

step-by-step explanation: