To find Jenny's age as a percentage of her great grandmother's age :

Two lines that are parallel to each other, will have the same slope.
so if this line is parallel to another with a slope of -5/8, the slope of this line is also -5/8 then. We also know that it passes through -7, 4 and -23, y, let's do some checking.
<h2>
Answer:</h2><h2>The expression to give the requested sum after simplifying,

=

</h2>
Step-by-step explanation:
To find the sum of first 20 terms,
a = 6, r = 3
By formula, 
substitute the values in the above formula, the equation becomes,


= 
Answer:
sin A = 0.69
Step-by-step explanation:
sin A = 20 / 29 = 0.69