Malik solved this system of equations.
2x+4y=24
5x+y=15

as the first step, he decided to solve for x in the first equation because it has a small, even number for the coefficient. jill told him there was a more efficient way. what reason can jill give for her statement?

Which is the graph of the function y=2(4)^x

Which expressions are equivalent to -7+3(-4e-3)? choose all answers that apply: choose all answers that apply: a -4(3e+4)? 4(3e+4) b 12e12e c none of the above

According to a study conducted in 2015, 18% of shoppers said that they prefer to buy generic instead of name-brand products. suppose that in a recent sample of 1500 shoppers, 315 stated that they prefer to buy generic instead of name-brand products. at a 5% significance level, can you conclude that the proportion of all shoppers who currently prefer to buy generic instead of name-brand products is higher than .18? use both the p-value and the critical-value approaches.