A) Sunayana got 15 out of 20 full marks and Bishwant got 35 out of 50 full marks. Express their marks as the fractions of the full marks and identify who has better performance. can anyone plz do it as fast as possible

dud sunayana has the more marks

Step-by-step explanation:

only 5 marks is not there in Sunayana but 15 marks is not there in Bishwant just subcract it.

c. y = 1/4 x + 5

step-by-step explanation:

first, put the equation of the line on the graph into slope-intercept form

(y = mx + b):   y = -4x + 8

second, a perpendicular line has to have "an opposite/reciprocal slope" to the original slope. so, find the "m" value in your original equation (it's -4, right? )

original slope: m = -4   perpendicular slope: change the sign to its opposite and find the reciprocal ("flip" the number)

new slope is now positive (b/c the original slope was negative 4), and it's 1/4 (not the original slope of 4 or 4/1)