To decrease a number by 21 % what do i have to multiply it by

Alice earns a monthly salary of 315 dollars plus a commission on her total sales. last month her total sales were $9640, and she earned a total of $1182.60. What is her commission rate?

A cereal company wants to change the shape of its cereal box in order to attract the attention of shoppers. The original cereal box has dimensions of 8 inches * 3 inches * 11 inches.

Mia says in 5,555 all the digits have the same value. Is MIA correct? Explain

Lisa is baking cookies but she only has 3 cups of sugar. She needs 1 and 2/3 cup of sugar and 2/3 cups of sugar for the frosting. How much sugar will she have left over after baking the cookies?

Skylar has 4 times as many books as Karen. If Skylar has 164 books, how many books does Karen have?

Which function has an axis of symmetry of x = - 2? f (x) = (x - 1) 2 2 f (x) = (x 1) 2 - 2 f (x) = (x - 2) 2 - 1 f (x) = (x 2) 2 - 1

What's the least common denominator for each group of fractures 1/6 and 7/8

Ginny wants to decorate the gift she got for her friend by putting a rose on each vertex of the package. The package is in the shape of a rectangular pyramid. How many roses does she need? A. 1 B. 3 C. 4 D. 5 E. 6

There are 4 sectors in a circle graph. Their measures are 36 degrees, 160 degrees, 56 degrees. Find the missing measure. 360 degrees 252 degrees 108 degrees

the pillars of a temple are cylindrically shaped. of each pillar has a circular base of radius 280 cm and height of 10 m how much concrete mix will be used to build 14 such pillars