A college professor 115 papers to grade. The professor determined that the equation p = -10t + 115 can be used to predict the number of papers left to grade p, after t hours. Can the professor finish grading all of the papers in 7.5 hours?

No

Step-by-step explanation:

Plug in 7.5 as t into the equation, and solve:

p = -10t + 115

p = -10(7.5) + 115

p = -75 + 115

p = 40

This means in 7.5 hours, he will still have 40 papers left to grade.

So, he will not be able to finish grading in 7.5 hours.

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation:

75

step-by-step explanation:

you do x-29=46 (the number of cantaloupes sold)

in order to find x, you have to find what minus 29 equals 46, meaning you'd have to add 29 to 46.

29+46=75

if you replace x with 75, the equation looks like:

75-29=46

x=75