Afurnace operates at 2,300°f. before it can be used to extract metal from an ore, the temperature must be raised to 3,600°f. this takes place at a rate of 250°f per quarter hour. identify the slope and y-intercept in an equation for the temperature in terms of x quarter hours.

There are 20 children in the cast of a class play and 8 of the children are boys of the boys 4 have a speaking part in the play and of the girls 8 do not have a speaking part in the play if a child from the cast of the place chosen at random what is the probability that the child has a speaking part

The midpoints of the sides of the large square are joined to form a smaller square. what is the area of the smaller square

Using elimination, what is -4x+2y=-12 4x+8y=-24