15% = 6 problems
30% = 12 problems
45% = 24 problems
60%= 36 problems
75%= 48 problems
95% = 60 problems
15%/3% =5% 6/3 =2 problems
100%= 62 problems
There were 62 questions on the test,
The initial expression is:

So we can solve for r so:
Answer:
part c im not 100% percent sure sorry if im wrong
Step-by-step explanation:
have a blessed day :)
See the picture attached to better understand the problem
we know that
in the right triangle ABC
tan 64°=AB/AC------> AB=AC*tan 64°-----> AB=x*tan 64°---> equation 1
in the right triangle ABD
tan 43°=AB/DA----> AB=DA*tan 43°---> AB=(240+x)*tan 43°---> equation 2
equate equation 1 and equation 2
x*tan 64°-=(240+x)*tan 43°---->x*tan 64=240*tan 43+x*tan 43
x*[tan 64-tan 43]=240*tan 43-----> x=240*tan 43/[tan 64-tan 43]
x=200.22 ft
AB=x*tan 64----> AB=200.22*tan 64-----> AB=410.51 ft
the answer is410.51 ft