How many sides does a regular polygon have if one exterior is 90 degrees?

A. 3

B. 4

C. 5

D. 6

Solve. -1.75 + 2.5 = ?

What is the answer 5i / (2+3i) ^2

Solve this equation: y-3x+15=10

What is the answer to 3n-5=7n+11

Slope=-1, y-intercept=0

Use the formula F=9/5C+32 to convert 24°c to degree F

Deluxe coffee is to be mixed with regular coffee to make at least 46 pounds of a blended coffee. The mixture must contain at least 11 pounds of deluxe coffee. Deluxe coffee costs $7 per pound and regular coffee $5 per pound.

Angie takes a loan of $1000 that has a simple interest rate of 3% annually. What is the amount of interest accrued after 2 years?

How many grams in 2/3 of a pound

Larry was able to walk 4 more than twice as many dogs as his friend kyle. write an algebraic expression to represent the number of dogs larry walked compared with kyle