Zhang is constructing a 4-ft loading ramp. The length of the back of the base must by 12.8-ft. How long must the entire base be? Choose 1 equation, choose 1 answer for the front of the base and choose 1 answer for the total base. Equation: \frac{4}{12.8}=\frac{x}{4}
12.8
4

=
4
x

\rightarrow→ 12.8x=1612.8x=16

Equation: \frac{4}{12.8}=\frac{4}{x}
12.8
4

=
x
4

\rightarrow→ 4x=51.24x=51.2

Front of Base: 0.078 ft

Front of Base: 1.25 ft

Total Base: 14.05 ft

Total Base: 12.878 ft

answer set (b) 0.5, 3/4 80% is in order from least to greatest.  

step-by-step explanation:

in order to compare rational numbers to each other, it is much easier if they are in the same form.   typically, the best form in which to evaluate rational numbers is in decimals.   in order to convert a percent to a decimal, you would divide the given percentage by 100.   you can also accomplish the conversion by moving the decimal point over two places to the left.   for example, the decimal value of 80% is 80/100, or 0.8.   in order to convert a fraction to a decimal, you need to divide the numerator by the denominator.   for example, 3/4 is 0.75.   so, for choice (b) 0.5 3/4 (0.75), 80% (0.8) is the only choice in which the numbers are in order from least to greatest.