What is a in this question, 3 (a+18) = 9

Chris used base ten blocks to model 2,781. He used 278 tens blocks. How many ones blocks did Chris use?

How can you use a ratio table to identify patterns and find equivalent Ratios?

When the sum of 8 and twice a positive number is subtracted from the square of the? number, 0 results. Find the number.

2) Julie is saving for a car. She's putting $125 aside each month for a down payment. If she needs at least $2000 for the down payment, which inequality represents the number of months it will take Julie to reach her goal?

Which figure appears to have one 1 line of symmetry

If 2x + 3z = 12, and z = - 2, then x=6 true or false

X-squared minus 6 equals zero

12 is 1/5 of what number?

An astronaut requires 2.3 lb of oxygen per day while in space. How many pounds of oxygen are needed for a team of 4 astronauts for 7 days in space?

Crystal and Victor are comparing the estimated calories burned in a calorie-counting software to the actual calories burned during exercise. Use the drop-down menus to complete the statements about the software's accuracy.