Write an algebraic equation relating the variables described in each of the following si...

Write an algebraic equation relating the variables described in each of the following situations:

a. The pay, P, for t hr if you are paid $d an hour

b. The pay, 13, for t hr if you are paid $15 for the first hour and $k for each additional hour

c. The total pay, P, for a visit and t hr of gardening if you are paid $20 for the visit and $10 for each hour of gardening

d. The total cost, C, of membership in a health club that charges a $300 initiation fee and $4 for each of n days attended

e. The cost, C, of renting a midsized car for 1 day of driving m mi if the rent is $30 per day plus 35 per mile.