Does1/3 & 7/21 form a proportion

It takes a helicopter 9/20 I of a minute to fly 4/5 of a mile. What is the helicopters speed in miles per minute?

The expression x^3-64 can be written as (x) ^3 - (4) ^3. what is the factorization of x^3-64? a^3-b^3 = (a-b) (a^2-ab+b^2) A) (x-4) (x^2+4x+8) B) (x-4) (x^2+4x+16) C) (x-4) (x^2+64x+16) D) (x-4) (x^2+64x+4096)

Find the equation of the straight line which is parallel to 2x + 3y = 11 and such that the sum of the intercepts on axes is 15.

Five thousand six hundred thirty four divided by eighteen

The perimeter of a building is 900 feet. If the length of the building is 400 feet, find the width. How many lights will be needed if they are to be placed every 15 feet around the building?

What is the LCD of 24 and 36?

Jan buys a Tv in sale. The price is £448. What was the original price of the Tv if the sale is 30% off?

How do you write 52 hundreds, 4 tens, 16 ones

What is the answer to - 3x-6 + (-1) =

Simplify the expression 3x (x-12x) + 3x^2-2 (x-2) ^2. which statements Are true about the process and simplified product check all that apply