Answer:
x > 1
Step-by-step explanation:
2x+5>7
move constant to right
2x>5-7
subtract 7 and 5
2x>2
divide both sides
x > 1
Answer:
4.12
Step-by-step explanation:
A^2+b^2=c^2 so 8^2+b^2=9^2 so 64+b^2=81 so b^2=17 so b=4.12
Answer:
20
Step-by-step explanation:
if you want a explanation ask for it :)