Julie needs 3 lengths of string that are each 6 inches long. marlene needs 7 lengths of string that are each 8 inches long. how much string do the girls need altogether? in.

What are the relative frequencies to the nearest hundredth of the columns of the two-way table?

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?

Hormones perform important functions within the reproductive system. during puberty, a number of changes occur in the body. which hormone is responsible for the development of these characteristics in the female? estrogen progestin progesterone testosterone