Caydin is inviting 11 friends over. Each friend gets 1/4 pizza. How many pizzas does he need?

A33 gram sample of a substance that's used to detect explosives has a k-value of 0.1473. n = noekt no = initial mass (at time t = 0) n = mass at time t k = a positive constant that depends on the substance itself and on the units used to measure time t = time, in days

Pyramid shown has a square base that is 18 inches on each side has a surface area of 164 square inches what is the slant height

The ph level of a blueberry is 3.1 what is the hydrogen-ion concentration [h+] for the blueberry