A system of equations is shown below. x+y=5
7x + 8y = 37

Which of the following are valid first steps in an algebraic method to solve the system of equations?

Astore ordered 750 candles a total wholesale cost of $7910.20. the soy candles cosy $12.17 each and thespecialty candles cost $9.58each. how many of each were bought?

In a young single person's monthly budget, $150 is spent on food, $175 is spent on housing, and $175 is spend on other items. suppose you drew a circle graph to represent this information, what percent of the graph represents housing?

The difference of three and the reciprocal of a number is equal to the quotient of 20 and the number. find the number.