A tree in Susan's backyard has been growing for 2 1/2 years. The tree is 3/5 meters tall. What is the unit rate in meters per year? Write your answer as a fraction or a mixed number in simplest form. PLEASE HELP NO LINKS PLEASE

Evaluate the expression for the given value of the variable 2×(c2-5) for c=4

Someone this asap for a group of students attends a basketball game. * the group buys x hot dogs at the concession stand for $2 each. * the group buys y drinks at the concession stand for $3 each. the group buys 29 items at the concession stand for a total of $70. how many hot dogs did the group buy?

What is the result of adding the system of equations? 2x+y=4 3x-y=6