Locate and label these numbers on a number line 3/4 and 7/8

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.

If the value of cos330°is√3/2 then find cos 165°.

How many solutions does the nonlinear system of equations graphed below have? a. one b. zero c. four d. two