Aaron, Blaine, and Cruz are solving the equation

4
7
(7 − n) = −1.

Aaron started his solution by multiplying both sides

of the equation by
7
4
.

Blaine started by using the distributive property to

multiply
4
7
by both 7 and −n.

Cruz started by dividing both sides of the equation

by
4
7
.

Which of the following is true?

Blaine and Cruz made an error in picking their first steps.
Cruz made an error in picking his first step.
All three made an error because the right side equals -1.
All three chose a valid first step toward solving the equation.

All three chose a valid first step toward solving the equation.

All approaches are algebraically correct

the answer is D

Step-by-step explanation:

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.