Strontium-90 has a half-life of about 28 years. After 112 years, how many grams of a 50 g sample will remain?

a. 3.125 g

b. 6.25 g

c. 12.5 g

d. 42.0 g

Miles has a square garden in his backyard. He decides to decrease the size of the garden by 1 foot on each side in order to make a gravel border. After he completes his gravel border, the area of the new garden is 25 feet2.

A bike rental company charges $12 rental fee plus $6 per hour. Alyssa paid $54 to rent a bike. How many hours did she rent it?

If you have $10, and you money doubles every year, how much money will you have in 10 years?

Write the word form and tell the value of the underlined digit. 485,002,000 the 8 is underlinedl

Given the functions: f (x) = 4x + 6, g (x) = 2x2, find (fg) (x). A.) 8x^3 + 12x2 B.) 2x^2 + 4x + 6 C.) 8x + 12 D.) 8x^2 + 12x

What number comes next in this pattern? 23, 35, 47, 59

Which of these expressions is not equivalent to the others? (4n + 3) + 5n + 8 - 6 (4n + 5n) + (3 + 8 - 6) 9n + 3 + 2 9n + 11

Reduce the fraction 100/525 to its simplest form, if possible.

Farmer Bob's daughter wanted to put carpet in her goats pen. The pen is 12 feet wide and 12 feet long. How many square feet of carpet does she need for the pen

A cylindrical can holds 96 cubic inches of pumpkin mix. How many cubic inches of pumpkin mix can a cone that has a congruent base and equal height to the cylinder hold?