Please answer quickly! Brainliest and thanks IF HELPFUL and CORRECT! Lots of 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.

Solve the triangle. a = 21°, c = 105°, c = 5

Write 37/22 as a decimal rounded to the nearest hundredth.