Solve the system of equations by the substitution method.

x+2y=-4
3x+5y=-14

a.
the solution set is { ? }
(type an ordered pair.)
b.
there are infinitely many solutions. the solution set is {(x, y) | ? }
(type an equation.)
c.
there is no solution. the solution set is empty set.

Option A

The solution set is (-8,2)

Step-by-step explanation:

Given is a system of equations as

We have to solve this by substitution method

Consider the first equation and write x in terms of y

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Substitute in II equation as follows:

The system has a unique solution and the solution set is

(-8,2)

#15. square

step-by-step explanation:

because quadrilatural (idk how to spell it) means somthing that is not 3d or like, equal sides (or somthing like that   you know what i meanz)

hope this halps!

bai!

$2416.6

step-by-step explanation:

per hour = $ 25

total work time = 35

commission = 15%

total she has to make = $ 4,500

let she sold x dollar products

so her commission will be 15 % of x

now

total = weekly basic pay + commission

4500= (25*35) + 15 % of x

4500=875 + * x

4500-875 =   * x

3625= * x

multiplying wwith 100 on both sides gives

36250 = 15 x

now

x =  

x= $2416.6