Alina solved this equation using the steps shown in the diagram, but she wasn't sure how to match this card. What advice can you offer Alina for how to determine whether this equation has one solution, no solution or infinite solutions? 10x - 3x + 7 = 2 - 4 + 7x


10x - 3x + 7 = 2 - 4 + 7x
7x + 7= -2 + 7x
7 = -2

On saturday morning, calls arrive at ticketmaster at a rate of 108 calls per hour. what is the probability of fewer than three calls in a randomly chosen minute?

The volume of a sphere is increased by 6%. calculate the corresponding percentage increased in it area.

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?