Which one is a rule for the nth term of an arithmetic sequence with a8 = 56 and d = 5?
a. an = 16 − 5n
b. an = 26 + 5n
c. an = 26 − 5n
d. an = 16 + 5n

Angel entered a triathlon (a three-part race). he swam 1 mile, rode his bike 30 miles, and ran 10 miles. how far did he go altogether? a. 11 miles b. 123 miles c. 41 miles d. 40 miles

Student price tickets to a movie are $1 and non student tickets are $2. 350 tickets are sold and the total amount made is $450. how many non student tickets were sold ? a) 100 b) 150 c) 200 d)250

The measure of an angle is 117°. what is the measure of a supplementary angle?