25 points

the equations x+5y = 10, 3x-y = 1, x-5y = 10, and 3x+y = 1 are shown on the graph below.
which is the approximate solution for the system of equations x+5y = 10 and 3x+y = 1?
a. (–0.3, 2.1)
b. (–0.3, –2.1)
c. (0.9, –1.8)
d. (0.9, 1.8)

Kelly is a salesperson at a shoe store, where she must sell a pre-set number of pairs of shoes each month. at the end of each work day the number of pairs of shoes that she has left to sell that month is given by the equation s=300-15x , where s is the number of pair of shoes kelly still needs to sell and x is the number of days she has worked that month. what is the meaning of the number 300 in this equation

Which number line represents the solution set for the inequality -1/2x> 24?

The lengths of two sides of a right triangle are given. find the length of the third side. round to the nearest tenth if necessary. a) y = 12/5x + 39/5 b) y = 5/12x + 5/39 c) y = 12/5x - 39/5 d) y = 5/12x - 5/39