Janice bought 28 apps for her phone that, altogether, used 1,348 mb of space.
a. if each app used the same amount of space, about how many mb of memory did each app use? show how you estimated.
b. if half of the apps were free and the other half were $1.99 each, about how much did she spend?

a) 48.143 MB

b) Money Janice paid is $27.86

Step-by-step explanation:

given,

Janice bought 28 apps which used 1,348 MB

a) memory used by each app

each app is of equal memory

now, 28 apps use memory = 1348 MB

        memory used by 1 app =

                                               = 48.143 MB

b) half app are free and half apps are chargeable with $1.99 each

money he spend on app = $1.99 × 14

                                         = $27.86

Money Janice paid is $27.86

the required function is .

step-by-step explanation:

from the given table it is noticed that the graph passing through (-3,7), (0,4), (3,1) and (8,-4).

it is a linear function because the value of y is decrease by one as the value of x increase by 1.

the slope of the function is

the slope of the function is -1 and the y-intercept is 4.

the slope intercept form is

where, m is slope and b is y-intercept.

therefore the required function is . the graph of this function is shown below.

correct answers below: