A buffet costs $15 plus $2 for each drink. Which function gives the total cost?

A. c(d)=2+15d
B. c(d)=17+d
C. c(d)=17d
D. c(d)=15+2d

D.

Step-by-step explanation:

The buffet by itself is $15, so that will be a number by itself, since it isn't changed by any variables. (you can rule out a, b, and c by this point).

Since it's $2 for each drink, this would require a variable since the price would fluctuate depending on the number of drinks.

Therefore, your function should look like this:

a1=7 and an-8=an+a1

step-by-step explanation:

2. angles qrt and qst both measures 156 degrees.

step-by-step explanation:  

we have been given a diagram of a circle and we are told that measure of arc qvt is 156 degrees.  

we can see from our given diagram that angle qrt and angle qst subtends to arc qvt.

since we know that angles subtended by the same arc at the circumference are always equal.

by angle subtended by same arc theorem, measure of angle qrt and angle qst will be equal to the measure of arc qvt.

therefore, angles qrt and qst both measures 156 degrees and 2nd statement is the correct choice.