Simplify -5 and 1/4 plus (9.75+-2.25) divided by 1 and 1/4 with work shown

F(n + 1) = f(n) – 8. if f(1) = 100, what is f(6)?

Janet is rolling a number cube with the numbers one through six she record the numbers after each row if she rolls of keep 48 times how many times should she expect to roll a 4

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?