Find the mean of the data in the dot plot below. years
Time it took each of Mia's friends
to learn to ride a bike
0
1
2
3
4
5
Number of years

Find the sum of the first 8 terms of the following sequence. round to the nearest hundredth if necessary.

1) in triangle the, what is the measure of angle t (in degrees)? 2) in triangle bat, the measure of angle b is 66∘, and the measure of angle t is 77∘.what is the measure of the exterior angle at a (in degrees)?

Over which interval is the graph of f(x) = x2 + 5x + 6 increasing?