The answer would be it has one solution
Answer:
Step-by-step explanation:
-2 = 4r + s
subtract 4r from both sides of the equation
-2 -4r = s
She gets $2.75 back if that’s what you’re asking.
Step-by-step explanation:
9x - 2 = 4x + 8 → (9-4)x = 8 + 2 → 5x = 10 → x = 10/2 = 5
C. multiplication
Multiplication not used
Answer:

Step-by-step explanation:
We have the product,
.
It is known that,
'When we multiply a scalar with a matrix, the scalar is multiplied by each element of the matrix'.
So, we get,
.
⇒ 
⇒ 
So, the resulting product is
.