Writing and evaluating expressions.

1. the average hippo weighs 83 pounds but fiona weighed f pounds. write an expression to find how much less fiona weighed at birth then the average hippo

b. evaluate the expression
fiona only weighed 29 pounds at birth.

2. in april fiona received 77 ounces of milk at each feeding. she was fed m times per day. write an expression to find how many ounces of milk fiona was fed per day.

b. evaluate the expression . she was fed 5 times a day.

the correct option is 2.

step-by-step explanation:

according to the given information triangle abc is a right angle triangle with right angle at a. segment ab is 5 and segment ac is 7. point d is on segment bc and angles adb and adc are right angles.

it is given that triangles abd, cad, and cba are similar.

two triangles are similar if their corresponding sides are proportional.

in triangle cba, using pythagoras theorem

                      )

triangle abd and cba are similar,

                            (2)

triangle cad and cba are similar,

                      )

using (1), (2) and (3), we get

hence proved.

therefore option 2 is correct.

9 sandwiches per hour

step-by-step explanation:

when we have a rate, we want a 1 in the denominator

27/3 = 9

27 sandwiches/ 3 hours = 9 sandwiches/hour