A woman bought 210 oranges for Gh¢7.50. she sold all of them at 3 for 15GP. find the I. total selling price of orange ii. percentage profit

15.5

step-by-step explanation:

5

∑

n = 1

substitute n = 1, 2, 3, 4, 5 and sum the terms

= + + + 2² + 2³

= 0.5 + 1 + 2 + 4 + 8

= 15.5

answer

d. 10

explanation

the distance from point y to wx is the height of the triangle.

using pythagoras theorem,

group similar terms to get,

this implies that,

take positive square root of both sides to get,

this implies that,

b.-4 units

all you   do is count how many times you move