Answer:
X would be equal to 5.
Step-by-step explanation:
20 divided by 16 equals 1.25.
1.25 times 4 equals to 5.
Answer:
i)D:
ii)R: 
iii) Y-int:(0,-1)
Step-by-step explanation:
i) The given absolute value function is;
.
The absolute value function is defined for all real values of x.
The domain is all real numbers.
ii) The range is all y-values that will make x defined.
The given function,
.
has vertex at, (-2,-3) and opens upwards.
This implies that, the minimum y-value is -3.
The range is 
iii) To find the y-intercept substitute x=0 in to the function.
.
.
.
.
The y-intercept is (0,-1)
See attachment for graph.
A lot she did good well $100 porfit off each one
List the possibilities where that happens
HHH
HHT
HTH
HTT
THH
THT
TTH
TTT
There are only 3 options out of these 8, making probablility 3/8