Christine went shopping and bought each of her nine nephews a gift, either a video costing $14.95 or a cd costing $16.88. she spent $142.27 on the gifts. how many videos and how many cds did she buy?

An ulcer medication has 300 milligrams in 2 tablets. how many milligrams are in 3 tablets?

You are standing next to a really big circular lake. you want to measure the diameter of the lake, but you don't want to have to swim across with a measuring tape! you decide to walk around the perimeter of the lake and measure its circumference, and find that it's 400\pi\text{ m}400? m. what is the diameter dd of the lake?

Which of the following is closest to 32.9 x 7.5? a: 232 b: 259 c: 220 d: 265