You are working at a solar farm. A row of solar panels is connected by electrical wires that run between panels. Connecting four panels together requires 3 wires, each feet long. How many feet of electrical wire are needed to connect a row of 9 solar panels?

What expression is equivalent to 42x-56y

Oscar and julie ashton are celebrating their 15th anniversary by having a reception hall. they have budgeted $4,500 for their reception. if the reception hall charges a $90 cleanup fee plus & 36 per person, find the greatest number of people that they may invite and still stay within their budget.

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base