Amy leaves the house to go get icecream she walks 2miles west and 3miles north how far away is Amy from her starting point

What is the volume of the sphere shown below with a radius of 3?

Li buys supplies so he can make and sell key chains. he begins to make a profit only after he sells 4 key chains. what point on the graph makes the most sense in this situation?

What is the expression in factored form? -x^2 + 3x + 28 a. (x-7)(x-4) b. -(x-7)(x+4) c. (x+4)(x+7) d. -(x-4)(x+7)