Can u please help me

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.

Find the area of an equilateral triangle with a side of 6 inches

Find two numbers if their sum is 91 and the ratio is 6: 7?