Answer:
25%
Step-by-step explanation:
= (4000 - 3000)/4000 × 100%
= 1000/4000 × 100%
= 0.25 × 100%
= 25%
Answer:
-2
Step-by-step explanation:

We use this formula to calculate the sum of all interior angles of a regular polygon; 180(n-2) , n= number of sides
so 180(5-2) = 540
each interior angle = 540 ÷ 5 = 108
<span>So the question is 25% of what number is 21. Lets turn that into an equation: let x be the number we are looking for. We need to take 25% from it and we know that that is equal to 21. Mathematically: 25% * x= 21. Or: (25/100) * x = 21. When we multiply both sides with 100 and divide both sides by 25 we get: x=21*(100/25). And we get that x=84. </span>
Answer: m<Z = 79
Step-by-step explanation:
180 - 22 = 158
158/2 = 79