Amodel railroad kit contains curved tracks and straight tracks . given that 35 % of the tracks are curved , what fraction of the tracks are straight ? write the fraction in simplest form

A. 127 cm^2 b. 144.5 cm^2 c. 172 cm^2 d. 50 cm^2

Six random samples were taken each year for three years. the table shows the inferred population for each type of fish for each year.

Aletter in the word electric is chosen at random. complete each sentence. there are possible outcomes. the theoretical probability that a vowel will not be chosen is the ratio . the theoretical probability that the letter n will be chosen is .