How to resolve-7=-7+v

What is the focus of a parabola with equation y^2=4x

If 160,000:n=4 then what is n?

There can be at most 125 customers in a certain restaurant write an inequality that represents the numbers of costumers at the restaurant

I was planting a tree in my backyard and hit something hard. I dug it out and decided it was an ore of copper. I took its mass, and it was 65.0 grams. after some tricky experiments in my basement lab, I managed to extract 11.5 grams of copper.

2.7 (7.8) ? I don't know how to work this problem ...

What Properties or characteristics or similar triangles could be used to prove the Pythagorean theorem?

One side of rectangle is 3 inches shorter than the other side, the perimeter is 54 inches. what are the dimensions of the rectangle? which of the following equations could be used to solve the problem? 2x+2 (x-3) = 54. 2x+2x-3=54. 2x-3=54.

A student has some $1 and $5 bills in his wallet. he has a total of 11 bills that are worth $35. how many of each type of bill does he have?

What is the fraction 4/3 whole number

If y varies jointly with X and z and y=9 when x=2 and z=9 find x when y = 105 and z = 3