Please help I have no idea how to do this and its due in a couple hours

for the first one, you should probably do a table of values then answer the question, i usually find that helpful

Step-by-step explanation:

46

step-by-step explanation:

given

height = 168 cm

formula

height =2.47*f+54.13

solution

168 = 2.47f + 54.13             subtract 54.13 from both sides

168 - 54.13   = 2.47f             combine

113.87 = 2.47f                     divide by 2.47

113.87 / 2.47 = f                   combine

46.1 = f  

answer: 46 cm

i think da answer is

d.square root of 3