I need help on the top one I just need the answer plzz worth 11 points

Marco has $38.43 dollars in his checking account. his checking account is linked to his amazon music account so he can buy music. the songs he purchases cost $1.29. part 1: write an expression to describe the amount of money in his checking account in relationship to the number of songs he purchases. part 2: describe what the variable represents in this situation.

In the diagram of circle o, what is the measure of zabc?

Two angles are complementary. the larger angle is 36 more than the smaller angle. what is the measure of the larger angle?