A number tripled and tripled again is 729 what is the number

How do you substitute 5x+4y=0, x-y=9

Which is an equation of the line that passes through (-1, - 5) and (-3, - 7)

What is 240:30? A 245 B 456 C 3456 D 8

Ella is tiling his kitchen. The kitchen is a rectangle measuring 3 1/2m by 5 3/4m. Tiles come in packs that cost £15 per pack. Each pack covers an area of 1m^2. Just in case he breaks some tiles, Ella decides to buy more packs than he needs.

An NBA game is 48 min long. If Lebron James ate a Big Mac Extra Value Meal (that is 1360 calories) before a game, would he burn off all the calories by the end of the game? if not, how much longer would he have to play

What is the volume of a shoe box with length 13 inches, width 7 inches, and height 5 inches? V = lwh

Alex accidentally forgot to stock up on toilet paper before the stay-at-home order. Now he has to buy toilet paper on the black market. Though the price of toilet paper on the black market has mostly stabilized, it still varies from day to day.

Write the following equation in the general form Ax + By + C = 0. 2x + y = 6

What is 17/20 as a desimal and percent

101/25converted to a mixed number