Write an equation to find how long it will take for the mass of the radioactive substance to reach 27grams.

Two workers are each going to sew buttons on 10 shirts. How many buttons will they need in total?

Multiply (x-3) by (x+4)

8 div by 275 place 0 in qoutient

What is 2.888888 as a fraction?

A cable service provider charges $40 per month for its basic package plus an additional $5.35 for each premium channel chosen. The average cost for cable per additional channel is given by the expression 5.

the beach shop sold 12 skim boards on saturday and 9 on sunday. What is the percent of decrease from saturday to sunday?

1. What's the area of the above figure, which has sides of length 6 and 8? A. 28 B. 42 C. 14 D. 48

Julian spends 85 min on HW each day. If 20% of the time is spent on math HW, how many minutes a day is Julian spending on math HW?

Which expression is equivalent to 1/2 (2n + 6) ?

In a rectangle, how do you determine what is length and what is width?