Does anyone know this answer

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.

x= cost per bracelet

number of bracelets * x + shipping charge = total cost

so

9x+9=72

b is the correct answer

i can answer this if i have the answer choices