The wedge, screw, and lever are all a. compound machines
b.100 percent efficient
c. simple machine
d. found in the human body ​

The reactions of photosynthesis occur in the of plant cell? a.mitochondria. b. lysosomes. c. chloroplasts. d. chlorophyll

Is 343 in the sequence -5, -2, 1, 4, 7

Which statement is true regarding the diagram of circle p? the sum of y and z must be 2x. the sum of y and z must be x. the difference of z and y must be 2x. the difference of z and y must be x