What is the amplitude and period of f(t)=4cos(t)?

3. solve by graphing: y = 2x + 6 x + y = -3

Given a(-12,5) and b(12,29) find the point that divides the line segment ab three-eighths of the way from a to 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.