Hassan buys organic nuts priced at $55 from the grocery store. How much did she pay the cashier, if she received $25 in change?

On #16 : explain how factoring a trinomial, ax^2+ bx+ c, when a does not equal 1 different from factoring a trinomial when a = 1.

Which equation can be used to measure the density of water in a spherical water tank? let w represent the number of water particles within the region.

Ahighway between points a and b has been closed for repairs. an alternative route between there two locations is to travel between a and c and then from c to b what is the value of y and what is the total distance from a to c to b?