Aubrey's dinner cost $85 . she tips the waitstaff 30% for excellent service. how much does aubrey tip the waitstaff?

To solve this problem, we must figure out what 30% of $85 is. To do this, we must first convert 30% to its decimal equivalent. We divide 30/100 to find the decimal because percentages are portions of 100.

30/100 = 0.3

Next, we must multiply this decimal by $85. We do this because the word "of" in mathematics implies that we must use multiplication.

0.3 * 85 = 25.5

Therefore, Aubrey tips the waitstaff $25.50.

Hope this helps!

b. 2

step-by-step explanation:

the slope of a line =δy/δx

δy= y₂-y₁

δx= x₂-x₁

therefore, using the points (-2,-3)   and (3,7) we can calculate gradient as follows:

m=(7--3)/(3--2) (a number minus a negative number the sign changes to a plus)

m=(7+10)/(3+2)

=10/5

=2

2.83941151 would be the answer you're looking for! : )