The way your problem is set it should be simplified to this....4x + 55
Answer: Bajo del Gualicho has a higher elevation than Lago Enriquillo.
Step-by-step explanation:
Since in this case the "elevations" are negative because are under sea level, we can call it depth.
In this sense, we are given the "elevations" or depths of two places:
Bajo del Gualicho: -72 m
Lago Enriquillo: -46 m
Keeping in mind we are actually talking about the depth of this places, we can say Bajo del Gualicho is deeper than Lago Enriquillo, and this is best expressed with the following inequality:

Where
represents Bajo del Gualicho and
represents Lago Enriquillo.
Answer:
Year - (1993 - 1995)
Step-by-step explanation:
Rate of change in the number of toys sold = 
In the interval (1990 - 1993),
Rate of change in number of toys sold = 
= 
= 4000
In the interval (1993 - 1995),
Rate of change = 
= 
= 5000
In the interval (2000 - 1995),
Rate of change = 
= 
= 3000
In the interval (2006 - 2000),
Rate of change = 
= 
= 1000
Therefore, rate of change in the number of toys sold is greatest in the interval (1993 - 1995).
The diameter of the coaster is 5 cm.
Step-by-step explanation:
Given,
The area of the circle = 19.63 sq inch
To find the diameter, we need to find the radius
Formula
The area of a circle with radius(r) = π
sq cm
According to the problem,
π
= 19.63
or,
= 
= 6.2459
or, r =
= 2.499 (approx)
= 2.5 cm
Hence the diameter of the circle = 2 × 2.5 cm = 5 cm