Brainliest

a plumber charges a consultation fee of $25 then charges $60 an hour. write a linear equation to model this situation.

a.

y = 60x + 25

b.

y = 25x + 60

c.

c = 25x + 60y

d.

c = 60x + 25y

Hiroaki wants to find 3 3/4 - 7/8 explain why he must rename 3 3/4 to do the subtraction.

For f(x) = 3x+1 and g(x) = x2 - 6, find (g/f)(x)

Scores on the cognitive scale of the bayley-scales of infant and toddler development range from 1 to 19, with a standard deviation of 3. calculate the margin of error in estimating the true mean cognitive scale score, with 99% confidence, if there are 12 infants and toddlers in a sample.