9 subtracted from one half of a number is 4

A particular bacterial colony doubles its population every 15 hours. A scientist running an experiment is starting with 100 bacteria cells.

Write the expression in complete factored form. 2n^2 (q+8) - (q+8) =

3. Lengths of 3 ft and 9 ft are cut from a board of length 12 ft. What length of board remains?

Eight over twelve equals x over thirty solve for x

What is 85,90,75,85,95 Median: Mean: Mode: Range:

Camille buys $50 worth of books at Target. She has a coupon for 10% off her entire purchase. What is the total cost of the books after the coupon is applied?

What is the value of sin (-θ) ? Let cos (-θ) = -3/5 and tanθ>0. A. - 4/5 B. 4/3 C. - 3/5 D. 4/5

Choose the best answer. 14. A helium atom has 2 electrons, each of which has a - 1 charge. Each proton has a + 1 charge. Overall, the helium atom has no charge. How many protons must the atom have? A. - 2 B. o c. 2 D. 3

Evaluate c-2c-2c, minus, 2 when c=7c=7c, equals, 7.

What is 7+6 * (15-8) + 3