What is when six is added to three more than a certain number the result is 21 what is the number

Write an inequality that expresses the reason the lengths 5 feet, 10 feet, and 20 feet could not be used to make a triangle. Explain how the inequality demonstrates that fact.

A line is 45/64 inch long. Find the length of a line 4/5 as long

The new total is 60%, but the sales tax is 5% of the bill. how much is the salestax?

16.5 + 4.73 show work on how you got the answer

Solve the equation - 10y - 3 = 7 for y. A. - 1 B. 0 C. 1 D. 2

A bag contains only 3 blue disks, 3 green disks, and 4 orange disks. If 3 disks are selected at random from the bag, what is the probability that 1 of the disks will be green and 2 of the disks will be orangeA) 1/30 B) 1/20 C) 3/40 D) 1/10 E) 3/20

Factor completely x^2-10x+25

Which describes the pedestrian crossing sign shown? The sign is a trapezoid because exactly one pair of opposite sides is parallel.

Which is greater 5 pounds or 85 ounces

2x+5y=20 in slope intercept form