Just want to know what is 21x+2

The equation d=1/2n (n-3) gives the number of diagonals D for polygon with n sides. use this equation to find the number of sides n for a polygon that has 65 diagonals

What is standard form for (2tens 1one) X10

Bea bakery bakes 215 cookies and 45 muffins every hour how May baked goods are baked in 4 hours.

The principal on Marcus' savings account is $4,500. The APR is 5.3%. What is the simple interest after 30 weeks?

The health of the bear population in Yellowstone National Park is monitored by periodic measurements taken from anesthetized bears. A sample of 54 bears has a mean weight of 182.9 lb. Assuming that σ is known to be 121.8 lb, use a 0.

Mary is 63.5 inches tall and her sister Tonya is 70 inches tall. Tonya wants to know how many inches taller she is than Mary. Which equation and solution can be used to solve this problem?

A school received a shipment of 4 boxes of paper. The school wants to split the paper equally among its 3 printers. How much paper should go to each printer?

Solve the formula for a, the acceleration due to gravity

Shelley is building a brick wall that needs to be 1.57 meters tall. So far, the wall is 1.54 meters tall, How much taller does the brick wall need to be? meters

Andre's garden has been infested by weeds. he noticed on the first day that there were 3 weeds and on the next day there were 50% more weeds. a. write an equation describing this situation b. find out how many weeds there are in the garden