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= (2^-16 * 5^10) * (5^-8 / 2^12) * 2^28

= 2^(-16 - 12 + 28) * 5^(10 -8)

= 2^0 * 5^2

= 25

you need more information to answer this question

step-by-step explanation:

problem:

f(x) = - 2/3x + 5; f(5/2)

substitute 5/2 in for x:

f(5/2) = -2/3(5/2) + 5

simplify the right side:

f(5/2) = -5/3 + 5

f(5/2) = 10/3

f(5/2) = 10/3

i hope this !