1. which graph represents a proportional relationship? a or b (photo1)

2. if it costs $78 for 13 sandwiches, what is the unit rate?

a. $6/ 1 sandwich
b. $156/ 26 sandwiches
c. $39/ 6 1/2 sandwiches
d. $8/ 1 sandwich

On any given day, the number of users, u, that access a certain website can be represented by the inequality 1125-4530 which of the following represents the range of users that access the website each day? u> 95 or u < 155 95> u> 155 u< 95 or > 155 95

The two square pyramids are similar. find the total volume of both pyramids if the ratio of their surface areas is 9/16

Awavelength of 610 nm was found to be the most intense wavelength emitted by copper. answer the following questions about this wavelength of light. a) what is this wavelength in cm? b) what is the frequency that corresponds to this wavelength? c) what is the energy of light of this wavelength? d) what is the wavenumber corresponding to this wavelength?