Susan must choose a number between 67 and 113 that is a multiple of 4,10 and20 write all the numbers that she could choose. if there is more than one number, separate them with commas.

Alake near the arctic circle is covered by a sheet of ice during the cold winter months. when spring arrives, the ice starts to melt. s(t) models the ice sheet's thickness (in meters) as a function of time tt (in weeks). s(t)=-0.25t+4

Show algebraically that f and g are inverse functions f(x)=x^2/-6; g(x)=square root of 2x+12

What is the value of the digit 1 in the number 13?