Dion ordered some coins for his arcade. the coins had a circumference equal to 8.8 centimeters. what is the diameter of the coins that dion ordered?

The equation x2 – 1x – 90 = 0 has solutions {a, b}. what is a + b?

How many kilometers are equal to 5 miles? use 1 mile ≈ 1.61 kilometers. !

Abag of jelly beans contain 13 pink, green, 20 yellow, 10 black, 7 red, and 11 orange jelly beans. approximately what percent of the jelly beans are pink and yellow?