Janelle made a fruit cake using bananas and apples. 40% of the fruits are bananas. Janelle used 48 bananas. How many total fruits did Janelle use?

Given the two similar triangles, how do i find the missing length? if a=4, b=5, and b'=7.5 find a'

The median am of triangle ∆abc is half the length of the side towards which it is drawn, bc . prove that triangle ∆abc is a right triangle, and find angle mac and abm

What is the point of inflection for the function f(x)=2cos4x on the interval (0, pi/2)