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

(x-5)1/2+5=2 what is possible solution of this equation

How many heads would you expect if you flipped a coin twice? first, fill in the table below with the correct probabilities. hint: the sample space for flipping a coin twice is {hh, ht, th, tt}. a = b = c = f

42. if 20 men can eat 200 kg of wheat in 40 days, then 10 men can eat 300 kg of wheat in how many days? a) 120 days b) 60 days c) 80 days d) none of these