Sarah bought a mango tree that grows 4 cm each day. it was 10 cm tall when she bought it and now it is 82 cm. write an equation to express the growth of this tree. let "x" represent the number of days sarah has owned the tree.

If c(x) = 4x – 2 and d(x) = x2 + 5x, what is (cxd)(x)

He mass of a single atom of carbon can be found by dividing the atomic mass (12.01 g) by 6.022 x 10^23. which is the mass of a single carbon atom, correctly written in scientific notation with the correct number of significant figures?

Timmy uses 1 1 2 cups of sugar for every 2 gallons of lemonade he makes. how many cups of sugar would timmy use if he makes 13 gallons of lemonade?