Brandon is landscaping his backyard. He bought 2 7/8 tons of decorative rock and 1 2/5 tons of boulders. How many total tons of rock did he buy?

Ineed to know the answer to this algebra question.

3.(03.01)the domain of the following relation r {(6, -2), (1, 2), (-3, -4), (-3, 2)} is (1 point)o {-4, -2, 2)^{-3, -3, 1,6}{-4, -2, 2, 2){-3, 1, 6)4.(03.01)dulan created color nanele for a wall usinn a mix of only arepn and blue naints haplotted the quantidescription+

You borrow $15000 to buy a tractor. the simple interest rate is 4%. you pay the loan off after 8 years. what is the total amount you paid for the loan