Which of these is an example of typing at an average of 42 words per minute

Find the length of the following tangent segments to the circles centered at o and o' whose radii are 5 and 3 respectively and the distance between o and o' is 12. what is the tangent segment of cd?

The quadratic function h(t)=-16.1t^2+150 choose the graph representation

When steve woke up. his temperature was 102 degrees f. two hours later it was 3 degrees lower. what was his temperature then?