Which expression represents the phrase "twice the sum of a number and three"?

2n + 3

2 + (2n+3)

2 (2n-3)

2 (n+3)

3400 dollars is placed in an account with an annual interest rate of 7.5%. How much will be in the account after 17 years, to the nearest cent?

Solve the system of equations y=x-4, y=-3x

Find the greatest common factor 6x^2y^4+18x^3y^5-12x^5y^3

Find the value of A when pi = 3.142 and r = 5

Yesterday morning at 8 a. m. the temperature was - 14˚F. At noon it was 10 degrees warmer. The temperature increase between noon and and 4 p. m. was twice the temperature increase between 8 a. m. and noon. What was the temperature at 4 p. m?

If x = 7, y = 1 and 2 = 1, then evaluate the following expression: X - y + z =

Solve 0.06*0.7+0.03=0.06 * (-0.2) + 0.03

What fraction of 1 pint is 1 cup

Solve m² + 8m = - 3 by completing the square. (Use a comma to separate multiple values.) What the answer for this?

In decomposition how many reactants do you start with? 2 1 3 or more 0 submit rewatch