how does societical expectations with regard to matric results influence matriculants into making unhealthy lifestyle choices​

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.

Need on this geometry question. explain how you did it.

Write the sine and cosine values of a, b, respectively, in the figure for (1) and (2) + explanation.