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

question 1 is 8, question 2 is 9, question 3 is 24

step-by-step explanation:

now, the numbers they give you at the top are the key. from there, you just have to plug and chug! let's try 1, 2, and 3!

key: a=3, b=5, c=6

1. a+5

remember, a=3, so we plug that in to get 3+5=8

2. 15-c

c=6, so we plug that in to get 15-6=9

3. 4b

b=6, so we plug it in to get 4*6=24

time to try the rest on your own! if you put the answers below in a comment, i'll check them for you!

6.5

step-by-step explanation:

you said it was in the question

~courtney