The first and last number or variables in a proportion. (for example, a and d in the proportion "a : b = c : d")

a) means
d) extremes
c) cross products
d) interest

41/2 - 1 1/3 what is the answer as a fraction?

Acompany wants to reduce the dimensions of its logo by one fourth to use on business cards. if the area of the original logo is 4 square inches, what is the area of the logo that will be used on the business cards?

Serena is making an experiment. for that, she needs 20 grams of a 52% solution of salt. she has two large bottles of salt water: one with 40% and the other with 70% of salt in them. how much of each must she use to make the solution she needs? i am in need of