I don't get this!

What is the common difference of the following arithmetic sequence?

-1000, - 2000, - 3000, ...

Which expression does NOT equal 4/5? 4 x 1/5 2 + 2/5 1/5 + 1/5 + 1/5 + 1/5 2 x 2/5

Lisa wants to cover the top of the lid in beads. She has enough beads to cover 42 square centimeters. Find the area of the lid. Can Lisa cover the top in beads?

A bag held 3 red marbles, 1 blue marble, and 4 yellow marbles. Lee drew a red marble and did not replace it. What is the probability of drawing a yellow marble next? A. 1/4 B. 1/3 C. 1/2 D. 4/7

A square lot is being turned into a garden with a 3-meter path at one end. If the area of the garden is 88 square meters, find the dimensions of the square lot.

M+4=17 solve each equation mentally

If rounded to the nearest tenth 47.098

What is the algebric expression for Multiply x by 3 Add 6 Raise to the second power

Floor tiles are 12 inches by 12 how many tiles are needed to tile a floor that is 36 by 15 feet

Find the length of the longest line segment that can be drawn on a rectangular board 3.07 m by 2.24 m.

Male mosquitoes in the mood for mating find female mosquitoes of their own species by listening for the characteristic "buzzing" frequency of the female's wing beats. This frequency is about 620 wing beats per second.