21x+7y=42 and - 5x+5y=10

Find the solution to the system of equations

Determine the vertex of the function f (x) = 2 (x - 4) 2 + 5. (-4,5) (4,5) (5, - 4) (5, 4)

what is the answer for (d-3) 2/5=30

Jess mowed lawns for 12 weeks in the summer. She earned a total of $480 over that time. If she earned the same amount each week, what was her weekly earnings during the summer?

Cameron has 2 video game holder stands each can hold 2 rows of 20 games write and evaluate a numerical expression to find the total number of games Cameron's video game holder stands can hold

The heat combustion of acetylene, C2H2 (g), at 25°C, is - 1299 kJ/mol. At this temperature, ΔHvalues for CO2 (g) and H2O (l) are - 393 and - 286 kJ/mol, respectively. Calculate ΔHfor acetylene.

64 over 100 reduces to

For the function f (x) = x^2, what effect will multiplying f (x) by 1/2 have on the graph? A. The graph will be compressed horizontally B. The graph will be stretched vertically C. The graph will be compressed vertically D.

Jamal wrote the inequality x/16_<66. witch situation best represented by this inequality?

Find one factor of the polynomial p (x) = - 3 x 3 - 12 x 2 - 15 x - 6 by finding a zero of the polynomial first:

An airplane's altitude changes - 378 feet over 7 minutes. What was the mean change of altitude in feet per minute?