Is this the right answer?

The table shows the cost of several bunches of bananas. what equation can be used to represent the cost c of a bunch that weights p pounds?

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 domain and range of the following function f(x) = 51x - 21+ 4