If l||m and m∠6 = 4x - 15 and m∠7 = x + 30, then m∠6 = 15 35 39 45

Suppose i flip two identical coins. what is the probability that i get one head and one tail?

Kira looked through online census information to determine the overage number of people living in the homes in her city what is true about kira's data collection?

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?