Three students opened saving accounts. mariama has saved $25.40. shai saved 3/4 of the amount that mariama saved. nyah saved twice as much as shai. how much is the total saved of all three? ? plzzz explain your answer

Each of the walls of a room with square dimensions has been built with two pieces of sheetrock, a smaller one and a larger one. the length of all the smaller ones is the same and is stored in the variable small. similarly, the length of all the larger ones is the same and is stored in the variable large. write a single expression whose value is the total area of this room. do not use any method invocations.

For each sentence below, find the value of x that makes each sentence true. (515) 5 = 25* x= (813)2 = 4* x=

What are the solutions for the following system? -2x^2+y=-5 y=-3x^2+5