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1 point Multiply.  (-5)(+6)(-7)(+8)(-4)(-5)

1 point Consider the figure below. Deloney and Jackson Streets meet at a 45° angle. A lot extends 70 yards along Jackson and 50 yards along Deloney. Find the length (in yd) of the back border. [Hint: Use Law of Cosines to solve the problem.  c2 = a2 + b2 -2ab cos C] (Round your answer to two significant digits.) 

1 point How many degrees are in an angle that measures (2π/3) radians?

1 point Find the slope m of the line  25 =

2 points An airport runway is 3 miles long.  How long is it in (a) feet and (b) yards?  [Hint: 1 mile = 5280 feet and 3 ft = 1 yard]

1 point Change 6.5 km to m.  [Hint: 1 km = 1,000 m]

1 point The radius of a gear is 20.0 cm. It turns through an angle of 240.0°. What is the distance a point travels on the surface of the gear (in cm)? (Round your answer to three significant digits.)

1 point Round 0.000337567 to four significant digits.

1 point Classify the angle as acute, right, or obtuse.

1 point Find the measure of the unknown angle