Write an expression equivalent to 7 + 21 that shows multiplication by a common factor

A red ball has a mass that is less then 1 killogram. A blue ball has 1 killogram. is the mass of blue ball more then or less then the mass of the red ball?

Estimate how many rulers will be about the same length as a teacher desk

Solve 3/2^x-4=16 Two step equations

Using each of the digits 0-6 only ones, make two equivalent ready ratios parentheses also known as a proportion brother sees one digit will go into each box only to church in boxes does not mean mean to add subtract multiply or divide

Jessie colored poster. She colored 2/5 of the poster red. Write a fraction that is equivalent to 2/5.

Write the slope-intercept form of the equation 11x-8y=-48

Which measure is most appropriate to describe the center of the data in the stem-and-leaf plot below? pounds of food collected 0 l 5 6 1 l 0 2 3 3 4 2 l 1 9 3 l 4 l 2 5 l 1

Joy is planning to purchase a sweater that costs $30 dollars at her local department store. The sweaters are on sale for 20% off. Which steps are needed to find the sale price of the sweater? A. Convert the percent to its decimal equivalent.

A rectangle has a length of (2m+1) and a width of (10-m) units. Find the perimeter of the rectangle

Is 4,5, or 6 the solution of the equation c + 8 = 13?