combine the y's and the regular numbers
17y=51
divide 51 by 17
y=3
Mark is correct because taking a slice from each pizza would be 3/6 or 1/2 of the pizza but taking two slices of the first pizza, Mark wouldn't get as much because that is the same as 2/6 or 1/3 of the pizza. 1/2 > 1/3 therefore Marks conclusion is correct.
Answer:
22/15
Step-by-step explanation:
2^4 = 16
3^5 = 243
16 - 243 = -227