There were a total of 625 goldfish and guppies in an aquarium. There were 79 more guppies than goldfish. Mr. Goldberg put an equal number of goldfish into 21 bags and sold 0 bags of goldfish. How many more guppies than goldfish were left?

1.0

step-by-step explanation:

5x+40

5(x + 8)

7x - 49

7(x - 7)

18x + 9

9(2x + 1)

15x - 10

5(3x - 2)

step-by-step explanation:

for number one all you have to do is factor 5 out of 5x + 40

for number 2 factor 7 out of 7x - 49

for number three factor 9 out of 18x + 9

for number four factor 5 out of 15x - 10

i dont know sorry

step-by-step explanation:

step-by-step explanation:

hans did not square the 40-unit side; he merely multiplied it by 2.   incorrect.