Answer:
Step-by-step explanation:
x² + 3 = (-9)² + 3 { (-9)² = -9 *-9 = 81}
= 81 + 3
= 84
x + 6 = -9 + 6 = -3
Answer:
See below, please
Step-by-step explanation:
The right:


The left:

So, after comparing the right side and the left side of this equation, we know
1)

2)

3)

So,

Answer:
x = -1
Step-by-step explanation:
When an exponent is negative, you have to move it to the denominator (or to the numerator if it's already on the denominator). Since the answer is
, you know that the 2 has been raised to the power of 1 (any number to the power of 1 is the same number), so you just make it negative. Hope that helps!
62.50/5=12.50 for each tour
500/12.50 = 40 tours