An umbrella is in the shape of a regular octagon as shown. the umbrella is separated into sections, as shown by the dashed lines that intersect in the center of the octogon. what is the value of x?

a: 22.5 degrees
b: 37.5 degrees
c: 45 degrees
d: 50 degrees

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?

Aplane is taking off from bangladesh headed to new york city. at the same time, a plane from new york city is headed to bangladesh is also taking off. the plane bound to new york city is traveling at 600 mph, while the plane traveling to bangladesh is traveling at 400 mph. how far from new york city will the two planes meet if the distance between new york city and bangladesh is 8,000 miles?

Christina can paint 420 square feet in 105 minutes. which unit rate describes the scenario?