Answer:
1.42
Step-by-step explanation:
x = original price
x + .06x = 1.50
1.06x = 1.50
x = 1.42
Answer:
b = ∛16 ≈ 2.520
Step-by-step explanation:
The area bounded by y=x^2 and y=b is given by the integral ...

For b = 4,
A(4) = (4/3)4^(3/2) = 32/3
We want to find b such that the area is half that, or ...
A(b) = (1/2)(32/3) = 16/3
So, we're solving the equation ...
16/3 = 4/3b^(3/2)
4 = b^(3/2) . . . . . . . . . . . . . . multiply by 3/4
4^(2/3) = b = ∛16 . . . . . . . . raise to the 3/2 power
X= 2
2x+3 =7
-3. -3
Subtract 3 from both sides
2x/2= 4/2
Divide 2 by both sides
X=2