Is the ratio 30 to 6 equal to 40 to 8? ?

Which is the graph of the piecewise function f(x)? f(x)=[tex]f(x) = \left \{ {{-x+1, x\leq 0 } \atop {x+1, x\ \textgreater \ 0}} \right.[/tex]

Two angles are complementary. the large angle is 36 more than the smaller angle. what is the measure of the large angle?

Prove that the value of the expression 7^8–7^7+7^6 is divisible by 43.