Simplify the square root of negative 45 using the imaginary number i

21 type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar. the solution set of n2 - 14n = -45 is { (separate the solutions with a comma)

Arectangle has a width of 5 cm and a length of 10 cm. if the width is increased by 3, how does the perimeter change?

If 3 3/4 lb. of candy costs 20.25 how much would 1lb. of candy cost