15% of 20 i saw what number

Translate and solve the algebraic statement for the given number below: "The difference of a number (n) and seven is equal to twice the number (n)." n=14 n=7 n=-7 n=21

What is the factored form of 8x^24-27^6

Find the x - and y-intercept of the line. 5x - 4y = 40

Annual returns on common small stocks available to investors vary a lot. In a recent year, the mean return was 11.7% and the standard deviation of returns was 34.1%. The law of large numbers says that a.

Bradley's sleeping bag weighs 7 pounds. His backpack and sleeping bag together weigh 35 pounds. How much does the backpack weigh without the sleeping bag?

Logan ate 1.438 pounds of grapes. His brother Ralph ate 1.44 pounds of grapes. Wich brother ate more grapes?

If x=11 units and h=7 units, then what is the area of the triangle shown above

What is when 12+21 to the 8th power

Eight times the sum of a number and six

What is the period of y=sin (3x)