Shanna wants to build a simple lean-to In her back yard. Where the ground Is level, she finds a stralght tree perpendicular to the ground. She leans a sheet of plywood against the tree at a 30-degree angle off the tree. If the
plywood Is 7 feet long, how far away is the base of the plywood from the tree?

Matt and brian were solving a system of equations. they both noticed that the two lines had the same slope. brian said that because each line in the system had the same slope, the two lines had to be parallel, which meant the solution to the system was "no solution" matt disagreed, and said they should also look at the y-intercepts before determining how many solutions there were. who is correct?

Use the distributive law to multiply. 3(4x + 5y + 6)

Jane moves from a house with 71 square feet of closet space to an apartment with 45.44 square feet of closet space. what is the percentage decrease of jane’s closet space?