Answer:
-2.8
Step-by-step explanation:
--Solve Step by Step--
2/5 = 0.4 as a decimal
Multiply that by -7
Fractional form of 2.5 is 5/2.
5.4 as a fraction is 27/5.
x^2*(-3x)=-3x^3. The power of x becomes 3 because you add the powers of x. (2+1=3)
pretty sure its D. 1.6 x 10^9
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