If (a, b) is the center of this circle, find a+b.​

Kevin is an insurance salesman. when he sells a policy, he makes 20 percent of the policy premium (p) up front; then each year the policy is active, he receives 15 percent of the original premium. which equation could be used to figure his total commission on a policy that has been active for five years? c=0.80p c=0.20p + 0.15p c=0.35p + 4(0.15) c=0.95p

Simplify the expression 10/11(22z) + (a+5) -1

Lines a and b are parallel. what is the value of x? -5 -10 -35 -55