Answer:
Abel has 30
Bob has 19
Step-by-step explanation:
Abel = a
Bob = b
a + b = 49
a = b + 11
Substitute:
2b + 11 = 49
2b = 38
b = 19
a = 30
A.) Mark is correct as every increase in x of 2 equals a y increase of 4
Using translation concepts, the equation of the graph of f(x) is given as follows:

<h3>What is a translation?</h3>
A translation is represented by a change in the function graph, according to operations such as multiplication or sum/subtraction in it's definition.
Function f(x) is a shift right of one unit of the square root function, hence x -> x - 1 and the equation is given by:

More can be learned about translation concepts at brainly.com/question/4521517
#SPJ1
So 4.5 is equal to 4 and 1/2
u can convert that to 9/2
then to get the reciprocal you flip the denominator and numerator
this gives u 2/9