Which of these strategies would eliminate a variable in the system of equations?

2x + 8y = -3

3x + 6y = -4

a: multiply the top equation by 333, multiply the bottom equation by -2−2minus, 2, then add the equations.

b: multiply the top equation by 333, multiply the bottom equation by 444, then subtract the bottom equation from the top equation.

c: multiply the top equation by -4−4minus, 4, multiply the bottom equation by 333, then add the equations.

The circumference of a redwood tree trunk is 20π ft, and it is 100 ft tall. what is the approximate volume of the redwood tree trunk? 1,000π ft3 10,000π ft3 4,000π ft3 40,000π ft3

The function below show how much jayna and hannah charge for babysitting. which statement best compares the two plants?

10 points? ? +++ me asap gabriella uses the current exchange rate to write the function, h(x), where x is the number of u.s. dollars and h(x) is the number of euros, the european union currency. she checks the rate and finds that h(100) = 7.5. which statement best describes what h(100) = 75 signifies? a) gabriella averages 7.5 u.s. dollars for every 100 euros. b) gabriella averages 100 u.s. dollars for every 25 euros. c) gabriella can exchange 75 u.s. dollars for 100 euros. d) gabriella can exchange 100 u.s. dollars for 75 euros.