An object is places 10.0 cm to the left of a convex lens with a focal lenght of 8.0 Cm . where is the image of the object ?

Which of the following situations represents a linear relationship? a. theresa increases the distance she runs by 0.1 miles every week. b. the volume of a box depends on the length of box. c. the amount of money in a bank account increases by 1 percent each year. d. the population of a town doubles every 5 years.

Which equation results from adding the equations in this system? x+6y=9 and -x+2y=-15

21 a stick 7 inches long is broken into two pieces, so that one piece is twice as long as the other one. how long are the two pieces?