Answer:


Step-by-step explanation:
The given system is:
4x-3y=8
5x-2y=-11
We make x the subject in the top equation to get:

Plug this expression for x in the bottom equation to get

We expand to obtain

Multiply through by 4

Group similar terms



This means


Not sure but I think it’s B
Answer:
area of a triangle is 1/2×h×b
Step-by-step explanation:
1÷2×12×13
=78
When multiplying two powers that have the same base, you can add the exponents.
Answer: 3 minutes
Step-by-step explanation:
it increased by 3 minutes everyday starting from 3, 6, and then finally 9.