Answer: 10,500 gm
Step-by-step explanation:
Given
Pasta requires 3.5 kg of tomatoes
we know, 
If the amount is triples, the quantity of tomatoes is 

Thus, he uses 10,500 gm of tomatoes
Answer:
A system of equations is when two or more equations have the same variable(s) that you work with together.
Step-by-step explanation:
For these types of equations, we typically use substitution, elimination, and graphing.
1 gallon covers 350 sqft
350sqft * 2.5 gallons= 875 sqft
875sqft will be covered by 2.5 gallons.
To use HL specifically they would need to have the same hypotenuse as well as a right angle.