Observe the sequences below.
i. -3, 1, 5, 9,
ii. 1, 2, 4, 8,
iii. 4, -12, 36, -108,
iv. 7, 14, 21, 28,
which of these are arithmetic sequences?
a. i, ii, and iv
b. iv only
c. i and iv
d. ii and iii

Emma will roll two number cubes labeled 1 through 6. she will record the sum of the two numbers after each roll. she will roll the two cubes 540 times. how many times should emma expect the sum to equal 5?

In δabc, if the length of side b is 3 centimeters and the measures of ∠b and ∠c are 45° and 60°, respectively, what is the length of side c to two decimal places?

You are riding your bike and notice the square sign above. you mentally draw a straight line from point a to c. describe the angle relationship between dca and bca