If b is the midpoint of ac, find bc (ab=3x-1 and ac=8x-20)

Solve with work both bert and ernie received an increase in their weekly salaries. bert's salary increased from $520 to $520. ernie's salary went from $580 to $645. find the percent of increase for each salary. what was the larger of the two percents ?

If olu is twice as old as funmi if the sum of their ages is 60 how old is olu

Given ab and cb are tangents of p, and m =10°. what is the measure of abp?