Please help

Which letters from the table represent like terms? a and b b and c a and d b and d

Frank owns a $141,000 home, for which he has a 30-year mortgage in the amount of $700 a month. once he has paid off mortgage, how much will he have paid in investment? a. $111,000 b. $109,000 c. $120,000 d. $141,000

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