So i only got to get 1 & 2
1. 7a+10
2. 5b - 2
sorry the others were hard
2(2)+2(6)= 16, so the perimeter must be 16. Let’s make one of the side lengths l = 3, so 2(3)+2(w)= 16, or w = 5. You can check by multiplying the dimensions that the areas are different.
Answer:
The answer is A
Step-by-step explanation: In B they try to trick you they say that 15 is grater than 30 and c and d are just dumb answers.
Do they know how to divide?
If so, tell them to divide the number in as many ways until you go past the number
For example, if your seeing if 9 is a prime number divide 9 by ,1,2,3,4,5,6,7,8,9 and only count the whole numbers.
This sounds complicated so just teach them simple time tables
Answer:
x=53°
y=24°
m∠x+m∠y
53+24=77
Step-by-step explanation: