exam Maths Puzzle Numerical Ability

Lorijayne smiled, for she had purchased C cats for only D dollars. Then she frowned, for she still had to purchase P parrots and each parrot cost (7/4) of the cost of 1 cat. How much did she pay for her parrots?

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I need this asap!! I'm trying to pass this class!!!

graph log 2(2x)

graph y = log2(x)

graph y=e^x and z=e^(2x)in the same window

graph y=log2(x)and z=log2(2x)in the sam I want to know if this problem is correct:

(y-2/3)^2 = 49

y - 2/3 = + or - Square root 2/3

If y - 2/3 = 2/3 then y = 4/3

If y - 2/3 = -2/3 then y = 0

Is this solution correct the way it is worked out?