Lola had $235.00 in her savings account. Three months later, Lola had $136.30 in her account. What was the percent decrease of Lola's savings
account?

What is the y intercept of f(x)=(1/2)^x?

Find the volume of the solid obtained by rotating the region enclosed by the curves y=1x and y=7^-x about the x-axis. (use symbolic notation and fractions where needed.) volume =

What is the circumference of a circle with an area of 50.24 cm²?