What comes next in the series 21 18 15 12

1,093,313 rounded to the nearest ten thousand

A rectangle has an area of 10 square feet. what could its perimeter be?

Are 8y=3x+40 and y=8/2x-1 perpendicular

Try it What is the vertex of the quadratic function f (x) = (x - 6) (x + 2) ?

A pole that is 3.4 m tall casts a shadow that is 1.54 m long. At the same time, a nearby building casts a shadow that is 35.75 m long. How tall is the building? Round your answer to the nearest meter.

I have 4 millions, 8 thousands, 11 tens, 6 ones, 9 tenths and 5 hundredths. what number am I?

The numbers 525 & 3000 are divisible by 3,5,15,25 and 75. what is the hcf of 525 & 3000?

Question 3. Find the following GCD and LCM: (3. a) GCD (343, 550), LCM (343, 550).|| (3. b) GCD (89, 110), LCM (89, 110). (3. c) GCD (870, 222), LCM (870, 222).

Simplify 24x5y2z10 / 16x3y z5 Show your work.

Multiply. (4x - 5) ^2 A. 16x^2 - 40x + 25 B. 16x^2 - 25 C. 16x^2 + 20x + 25 D. 16x^2 + 40x + 25