Answer:
140,120
Step-by-step explanation:
sum of angles in a quadrilateral =360
sum of the 1st two angles=60+40=100
360-100=260
the ratio of the remaining angles 7:6
therefore:

=140
for the second angle
260-140=120
y = -
x - 5
the equation of a line in slope-intercept form is
y = mx + c ( m is the slope and c the y-intercept )
here m = - 
y = -
x + c ← is the partial equation
to find c substitute (- 4, - 3 ) into the partial equation
- 3 = 2 + c ⇒ c = - 3 - 2 = - 5
y = -
x - 5 ← in slope-intercept form
29.3 mph because the first bicyclist went 88 miles while the second went only 84 at 28 mph