Hey guys can me.

mona, tabitha, and reid are at a frozen yogurt shop. at the shop, frozen yogurt and toppings are charged by the ounce. the following table shows the weight and cost of each person's bowl.

a. what does the yogurt shop charge per ounce?

b. what should reid's bowl cost?

my guess is

step-by-step explanation:

let x and 400 - x be the two numbers.  

==> 0.80x + 0.85(400 - x) = 400 - 68 from the statement of the problem.  

< ==> 0.80x + 0.85(400 - x) = 400 - 68  

==> 340 - 0.05x = 332  

< ==> -0.05x = -8 ==> x = 160, the first number ==> 400 - x = 240, the second number.