Aaron, Blaine, and Cruz are solving the equation
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
Aaron started his solution by multiplying both sides
of the equation by a
Blaine started by using the distributive property to
multiply by both 7 and -n.
Cruz started by dividing both sides of the equation
by
gyals - 1
All three chose a valid first step toward solving the
equation

70

step-by-step explanation:

2*5=10

4*15=60

60+10=

70

$450 is the answer.

step-by-step explanation:

30% of 450 = 135

450-135=315

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.  

the one that has a slope of 1/2 and is positive.

step-by-step explanation: 2 buckets 1 trip ; 4 buckets 2 trips and so on.