1/3x=15 *
Can you help me

Tiara buys the pizza shown below: a circular pizza is shown. the edge of one slice is marked ab. what does the curve ab represent?

If you shift the linear parent function, f(x)=x, up 13 units, what is the equation of the new function?

Acertain population of bacteria demonstrates exponential growth doubles in size every 4 days. how long will it take the population to triple in size?