Which of the following makes sense as an answer to 8.9 times 7.15

Which of the following system of equation is not equal to the system of equations is not equal to the system of equations shown below

Alawn mower manufacturer incurs a total of 34,816 in overhead costs and 388 per lawn mower in production costs. how many lawn mowers were manufactured if the average cost of productions is 660

Which is the graph of f(x) = (4)x? image for option 1 image for option 2 image for option 3 image for option 4