Luis' father is four times as old as luis. his grandfather is twenty years older than his father. the sum of their three ages is 110. how old is luis father?

The table represents a linear function. what is the slope of the function? –6 –4 4 6

Kapil needed to buy a long wooden beam. he went to two sawmills that each charge an initial fee plus an additional fee for each meter of wood. the following equation gives the price (in dollars) of a wooden beam from the first sawmill as a function of its length (in meters). p = 5+20xp=5+20x

To determine the number of deer in a forest a forest ranger tags 280 and releases them back