Answer:
no
Step-by-step explanation:
2x + 3y ≥ 20
Substitute the point (2,5) in for x and y and see the inequality is true
2(2) +3(5) ≥ 20
4 + 15 ≥ 20
19 ≥ 20
This is not true, so (2,5) is not a solution
Answer:

Step-by-step explanation:
Let's solve for L.

Step 1: Flip the equation.

Step 2: Add
to both sides.


Step 3: Divide both sides by
.


Answer:

Answer:

Step-by-step explanation:
From the question we are told that:
Cost Price 
Sale Price 
Generally the equation for Profit P is mathematically given by



Therefore as a percentage
Percentage Profit X is given as


Answer: no solution
Step-by-step explanation:
Answer:
7. 4^2 = 6
8. 7^2 = 49
9. 6^4 =1296
10. 1^2 = 1
11. 5^3 =125
12. 1^3 =1
Step-by-step explanation: