Answer:
12
Step-by-step explanation:
21=31
31=7+2-3+0=12
This is correct because linear equations mean add subtract divide and multiply instead of finding roots and squares
1=x-8
add 8 to both sides
9=x
checking that it works
1=9-8
1=1
so 9=x
Answer:
4/27
Step-by-step explanation:
total number of marbles=9
probability of red=4/9
since you returned the first marble, the total number of marbles remains the same
prob(Blue)=(3/9)=1/3
P(red then blue)=(4/9)*(1/3)
=4/27
Answer:
4
Step-by-step explanation:
We need to form an equation to find the value of the number. We can call this number x:
÷ 
= 64 - because the base of the powers are the same we can simplify it
= 64
x = ∛64
x = 4
