A plumber charges a flat rate of $100 and $50 per hour, h, for a job. Which expression represents the total cost for the job?

50 + 100h

100 + 50h

100(5+h)

50(h+100)
If right will give brainiest

Beth divided 9 ounces of her granola recipe into 4 equal-sized amounts. she placed the amounts into individual bowls. the fraction 9/4 represents the number of ounces of granola in each bowl. which other number represents the amount of granola beth has in each bowl? (a) 1 1/4 (b) 2 1/4 (c) 1 3/4 (d) 3 3/4 i need !