Help me PLZ KDKDKSSK :( asap

John bought 5 lemons and used 2 of them for a salad how much did he use for.a salad . he used % of the lemons.

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

Rose bought a new hat when she was on vacation. the following formula describes the percent sales tax rose paid b=t-c/c