Can someone Please help

for correct answer!

Which shows the correct solution of the equation 1/2a+2/3b=50, when b=30?

Asquare has a side that measures 11 units. what is the area of a circle with a circumference that equals the perimeter of the square? use 3.14 for π, and round your answer to the nearest hundredth. 1519.76 units2 379.94 units2 616.56 units2 154.14 units2

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