How do I combine like terms?

-28ab-35ab+12b^2-42b^2

^2 = squared

Twenty girls (ages 9-10) competed in the 50-meter freestyle event at a local swim meet. The mean time was 43.70 seconds with a standard deviation of 8.07 seconds. The median time was 40.15 with an IQR of 4.98 seconds.

What is the conversion for 360 kilometers per hour to miles per hour?

What kind of lines intersect to form right angles? Adjacent lines Perpendicular lines Intersecting lines

Mr. Hawkins is covering a room in carpet. The room measures 14 feet by 12 feet in a rectangular shape. Each square foot of carpet costs $2.10. What is the cost of carpeting the room?

Emily had 3 yards of string to fly a kite. The string broke and Emily had only 20 yards of sting left. how many yards of string broke?

The function h (t) = - 1682 + 96 + 6 represents an object projected into the air from a cannon. The maximum height reached by the object is 150 feet.

What are the zeros of the function? f (x) = x (x-2) (x+1) -2 -1 0 1 2 select EACH correct answer

B. If soil is priced at $5 per cubic yard, how much will it cost to fill your boxes?

What is 2pi / 5radians in degrees

Gabby is recording her results from flipping a coin. She notices that heads has occurred 18 out of 41 times. What is the frequency of tails?