How do i go about solving the following system of equations by elimination?

4m-3n=27 and 8m-6n=18

(This was meant to be my previous question, but i accidentally put in the one I already solved for)

Identify the polynomial written in descending order. 4x3 + 12x2 - 5x - 1 -1 - 5x + 12x2 + 4x3 -5x - 1 + 4x3 + 12x2 12x2 + 4x3 - 1 - 5x

The number 24 has eight factors. True False

At a garden center grass seed sells for eight dollars per pound Kelly Lee spend $10 on grass seed what amount of seed did he buy

A water storage tank has the shape of a cylinder with diameter 10 ft. It is mounted so that the circular cross-sections are vertical. If the depth of the water is 8 ft, what percentage of the total capacity is being used?

The Honeymoon Charter Fishing Boat Company only allows newlywed couples on their sunrise trips. There is a captain, a first mate, and a deck hand manning the boat on these trips. a.

Solve the following system of equations using the elimination method. 5x - 5y = 10 6x - 4y = 4

Round 4.051 to the nearest hundredth

Round 4.88 to the nearest tenth

Write 24 over 5 as a mixed number

Using the intermediate value theorem, determine, if possible, whether the function f has at least one real zero between a and b. f (x) = x^3+4x^2-6x-6 a=-6 b=-4