Answer:
4 + (3s/10) gallons
Step-by-step explanation:
Originally, there are 4 gallons. Add that to the expression. Every second, 3/10 gallon are filled. So s times 3/10 equal the total number of gallons added. Add both expressions together to get the answer.
Answer:
The triangle is a right triangle.
Step-by-step explanation:
Since The Pythagorean Theorem only works on right triangles, we can use this knowledge to prove whether this triangle is right:

Therefore, the triangle is right.
Negotiating in trade means you are bartering.
Answer:
10.1 cm
Step-by-step explanation:
1.2 + 0.8 + 2.4 + 1.9 + 1.5 + 2.3 = 10.1 cm