If x + y is rational, must x and y each be rational?

What is 4 (2 - n) = - 2n - 2 (n + 4)

Kenya exchange $200 for euros (€) suppose the conversion rate is €1 = 1.321. How many euros should Kenya receive?

Evaluate the expression X^4 when x=7

Select the expression that has a quitiont greater than 1. Explain your reasoning. 4 2/3 divided by 5 1/4 = 3 1/8 divided by 2 2/5= 1 6/7 divided by 2 1/3 = 5 3/4 divided by 7 3/8=

Convert y=x^2-3x-28 in standard form.

Estimate the mixed number 20by rounding to the nearest whole number or one-half. 20 3/20 estimates to ...

What is x1/2 * x1/3 =

Adam drew two samw size rectangles and divide them into the same number of equal parts. He shaded 1/3 of one rectangle an 1/4 of the other rectangle. What is the west number of parts into which both rectángles could one divided

Two trains start heading toward each other from two cities, the distance between which is 720 km and meet right in the middle. The second train left 1 hour after the first train, but traveled at a speed 4 km/hour faster than the first train.

Divide X^2+77x+20 by x+9 what is the quotient and remainder?