Acompany purchased equipment and signed a 7-year installment loan at 9% annual interest. the annual payments equal $9,000. the present value of an annuity factor for 7 years at 9% is 5.0330. the present value of a single sum factor for 7 years at 9% is 0.5470. the present value of the loan is: a. $9,000 b. $4,923 c. $16,453 d. $63,000 e. $45,297

The decibel level of sound is 50 db greater on a busy street than in a quiet room where the intensity of sound is watt/m2. the level of sound in the quiet room is db, and the intensity of sound in the busy street is watt/m2. use the formula , where is the sound level in decibels, i is the intensity of sound, and is the smallest sound intensity that can be heard by the human ear (roughly equal to watts/m2).

Ling listed all of the factors of a mystery number: 1,2,4,8,16,32 what is the mystery number?

According to the 2008 u.s. census, california had a population of approximately 4 × 10^7 people and florida had a population of approximately 2 × 10^7 people. which of the following is true? a. the population of florida was approximately two times the population of california. b. the population of florida was approximately twenty times the population of california. c. the population of california was approximately twenty times the population of florida. d. the population of california was approximately two times the population of florida.