Answer:
25, and 8
Step-by-step explanation:
5 x 5 = 25
4 x 2 = 8
Answer:
x = -1
Step-by-step explanation:
3x - 15 = -18
Add 15 to both sides;
3x = -3
Divide both sides by 3;
x = -1
Answer:

Step-by-step explanation:
Angles in a triangle add up to 180°


Angles on a straight line add up to 180°


If he has 20 2\3 and you add a 1 under 4 then you get 20 2\3 divided by 4\1.
Multiply 2\3 and 4\1 and you get 12\2, then simplify and that's 6. multiply 6 times 20 and you get 120.