Joanna earns $18 per hour, plus a 4% commission on each appliance she sells. If she works 8 hours and sells an appliance for 900$ how much does she earn in total?

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.

the answer is z7+8/5