2. An item used to sell for seventy-five cents a pound, and you see that it's been marked up to eighty-one cents a pound. What is the percent increase?

It is not 4%.  The answer is 8%

Step-by-step explanation:

First subtract .75 from .81 and you get the difference between the two prices .06 cents.  Now use the formula % = (amount of increase)/(original amount) * 100.

Substitute and you get X = .06/.75 * 100

X = 6/.75         (.06 * 100 = 6)

X = 8

8%

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