Which graph represents the function of f(x)=4x^2-4x-8/2x+2

The sum of two numbers is 86, and their difference is 20. find the two numbers

Atown has a population of 17000 and grows at 2.5% every year. to the nearest year, how long will it be until the population will reach 19600?

Robert has 78 tomato lants and 56 cucumber plants .he wants to plant them in rows that only have one type of plant in each row with the same number of plants in each row. how many plants should he put in each row and how many rows of each type of plant will he need