By substitution method in algebra, how would i solve y=4x-7 and y=2x+9?

A 30 foot tree broke from its base and fell against a house. If the tree touches at 21 feet what angle is the tree forming with the house?

A daily supply of oxygen for a particular multicellular organism is provided by 625 sqaure feet of lawn. A total of 1,250 sqaure feet of lawn would provide the daily supplies of oxrgen for how many organisms

What is the slope of the line described by the equation below y-5=-3 (x-17)

An oil well produces 172 gallons of oil each day. A standard oil barrel holds 42 gallons of oil. Abot how many barrels of oil will the well produce in one day.

Daisy spent a total of $31 before tax on ice cream. the table below shows the different flavors she bought. a carton of strawberry ice cream costs $1.50 more than a carton of vanilla ice cream.

Over a period of five days, the average time of a commuter train trip from one town to the city was 77 minutes. One trip was 71 minutes, another was 74, and two each were 78 minutes. How many minutes long was the fifth trip?

A 4 pound package of peanuts is divided into 1/4 pound packages. How many 1/4 pound packages will there be?

An item sells two for 66. what should 5 items

A rectangular sandbox is 10 1/2 feet long and 4 feet wide. What is the area of the sandbox

How to do two step equations wit subtraction