Answer:
Betina is 
tall
Step-by-step explanation:
let
x ----> Brian's height
y ----> Bonnie's height
z ----> Betina's height
we know that
so
substitute the value of x
substitute the value of y
therefore
Betina is tall
Answer:
55.5000143456...
Step-by-step explanation:
Use the formula for the area of a circle and solve for r:
X is 1 because if you times it by x it equals it number
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If you would like to know the average rate in miles per hour, you can calculate this using the following steps:
420 miles ... 210 minutes
x miles = ? ... 1 hour = 60 minutes
420 * 60 = 210 * x
x = 420 * 60 / 210
x = 120 miles
The correct result would be 120 miles per hour.
