Oa
⊥
oc

\qquad m \angle aob = 6x - 12^\circm∠aob=6x−12
∘
space, m, angle, a, o, b, equals, 6, x, minus, 12, degree
\qquad m \angle boc = 3x + 30^\circm∠boc=3x+30
∘
space, m, angle, b, o, c, equals, 3, x, plus, 30, degree
find m\angle aobm∠aobm, angle, a, o, b:

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.