Last year Billy weighed 75kg. This year he weighed 90kg. With what percentage did his weight increase?

I think the solution is this below

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75/90 × 100%

(dividing 75 bad 90 by 5 )

15/18 × 100%

(dividing 15 and 18 by 3 )

5/6 × 100%

( dividing 6 and 100 by 2 )

5/3 × 50%

250/3%

83 1/3%

your answer > 250/3% or 83 1/3%

  or  

step-by-step explanation:

if the four friends split the cost, p, of the pizza evenly, then each friend pays one-fourth of the cost of the pizza.

the expression is   or  

i think the amount would be $140.62