Give recent south african population's statistics.

John used linear combination to solve the system of equations shown. he did so by multiplying the first equation by -3 and the second equation by another number to eliminate the x-terms. what number did jonas multiply the second equation by? 4x-6y=23x+5y=11

Angles r and s are complementary. the measure of angle r is 31 degrees. which equation can be used to find angle s?

The functions below show the amount of money bella and sweet t had saved after earning money for doing chores. which description best compares the two functions?