Answer:
x= 2 Square root 2
Step-by-step explanation:
x^2=8
x= Square root 8
=2 Square root 2
Answer:
She needs to do at least 8 a day
Step-by-step explanation:
Answer:
b=7
Step-by-step explanation:
2(3b-1)= 40
divide both sides by 2
3b-1 = 20
then add 1 to each side
3b = 21
then divide both sides by 3
b = 7
then check 2(3*7-1) = 40