Work out the size of angle x

What is the point-slope equation of a line with slope -5 that contains the point (6,3)

What is the y intercept of f(x)=(1/2)^x?

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.