Which sentence below is a compound sentence? a. john and mary turned in their homework. c. max maintained that the database needed restructuring, and laura agreed. b. when i saw what you had done, i was sad. d. all of the above

C.

Explanation:

A compound sentence is a sentence that have at-least two independent clauses in it, meaning that these two clauses can be understood without the other clause also. These two independent clauses are joined either by conjunction with a comma or semi-colon, semi-colon, colon, dash, or by coordinating conjunction.

In the given examples, Option C is correct.

"Max maintained that the database needed restructuring,..." and "and Laura agreed." Both are independent clauses that can be understood without the other clause.

x=4, y=4

step-by-step explanation:

y=2x-4;

x+2y=12

we can use substitution since the first equation is solved for y

where ever you see y in the second equation, replace it with 2x-4

x + 2(2x-4) = 12

distribute the 2

x+4x-8 = 12

combine like terms

5x-8=12

add 8 to each side

5x-8+8=12+8

5x=20

divide by 5

5x/5 = 20/5

x =4

we still need to solve for y

y = 2x-4

we know x =4

y = 2(4) -4

y = 8-4

y=4