Write the following numbers in decimal form. (note: some of these numbers have been rounded.)
the width of a pixel on a smartphone is 7.8 × 10^−2 mm

So in decimal   will be equal to 0.078 mm

Step-by-step explanation:

We have given the width of the pixel on a smart phone is

We have to write this into decimal form

So for converting into decimal we have to divide 7.8 by 100

So =

So in decimal   will be equal to 0.078 mm

the expression (1.26)2t reveals the approximate rate of increases in the number of plants semiannually.

hope this : )

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step-by-step explanatio89