CALC AB/ Evaluate the Limit

Samantha swam upstream for some distance in one hour. she then swam downstream the same river for the same distance in only 12 minutes. if the river flows at 4 mph, how fast can samantha swim in still water?

Find the value of x that will make l ll m

Write the equation for the parabola that has x− intercepts (−2,0) and (4,0) and y− intercept (0,4).