If a diver jumps out of the boat on higgins lake, at sea level, and descends 136 feet, how many feet must the diver ascend to get back to sea level?

include an expression and the answer

What are “like terms”? why can we only add like terms?

Measures of the angle of r, 31 s (x+4) t (3x+9)

Use the frequency distribution, which shows the number of american voters (in millions) according to age, to find the probability that a voter chosen at random is in the 18 to 20 years old age range. ages frequency 18 to 20 5.9 21 to 24 7.7 25 to 34 20.4 35 to 44 25.1 45 to 64 54.4 65 and over 27.7 the probability that a voter chosen at random is in the 18 to 20 years old age range is nothing. (round to three decimal places as needed.)