What is the estimate for each expression? here are all the possible answers 0, 1, ,1/2 expressions: 1/8 +2/5=.
13/14-1/10
1/12+1/20

How many solutions does the nonlinear system of equations graphed below have?

Apinhole camera is made out of a light-tight box with a piece of film attached to one side and pinhole on the opposite side. the optimum diameter d(in millimeters) of the pinhole can be modeled by d=1.9[ (5.5 x 10^-4) l) ] ^1/2, where l is the length of the camera box (in millimeters). what is the optimum diameter for a pinhole camera if the camera box has a length of 10 centimeters

Tatiana reads 40 pages of her book every night for x number of nights. write an expression that shows the number of pages she has read