Answer:
42
Step-by-step explanation:
3x^2 +5x
Let x=3
3(3)^2 +5(3)
3*9 +15
27+15
42
Answer:
6/13 7/13 chance to get the marbles
Step-by-step explanation:
She... she read 1/2 of a page in 1 minute...
<h2>
Answer: m = -1</h2>
Step-by-step explanation:
If you follow the formula : y2 - y1 / x2 - x1
You will get 
m = -1
* Hopefully this helps:) Mark me the brainliest:)!!!