Isobel is producing and selling cassette tapes of her rock band. When she had sold 10 tapes, her net profit was $11. When she had sold 20 tapes, however, her net profit had shrunk to $9 due to increased production expenses. But when she had sold 30 tapes, her net profit had rebounded to $13.

erica would now have 20 bottles of water because 26-6=20.

i hope this : )

a is the answer to ur question

try this. the error is that sariah was combining a constant (4.5) with a variable with a coefficient, thus getting an inaccurate answer.

this is also assuming that you meant to put an equal sign before the 4.5 + x 35 x

to solve this problem, the strategy used is just to solve it yourself and find the correct answer by combining like terms.

hope this !