Afloor plan of a house was drawn using a scale of 1 cm = 1.5 m.
family room in the plan is pictured as 5 cm by 4 cm. in square meters,
what is the actual area of the family room? circle the letter of the
correct answer.
a 20
b 27
c 30
d 45
liz chose c as the correct answer. how did she get that answer?

Apinhole camera is made out of a light-tight box with a piece of film attached to one side and pinhole on the opposite side. the optimum diameter d(in millimeters) of the pinhole can be modeled by d=1.9[ (5.5 x 10^-4) l) ] ^1/2, where l is the length of the camera box (in millimeters). what is the optimum diameter for a pinhole camera if the camera box has a length of 10 centimeters

Askate shop rents roller skates as shown on the table below. which graph and function models this situation?

The sum of the first eight terms of an arithmetic progression is 9m + 14. the fifth term of the06 progression is 2m - 6, where m is a constant.given that the first term of the progression is 26,find the value of the common difference, d and thevalue of m.