Use the ratio of a 45-45-99 triangle to solve for the variables.​

What is a correct first step in solving the inequality-4(3-5x)> -6x+9

Study results indicate that the mean length of time people spend on a bus in a city is between 21.2 min and 24.5 min what is the study margin of the error?

Sally deposited money into a savings account paying 4% simple interest per year. the first year, she earned $75 in interest. how much interest will she earn during the following year? show your work and explain your reasoning in the space provided below.