One month Miko bought two books at a used book store for a total of $2. Over the next few months she bought four books for a total of $5, six books for a total of $7, and eight books
for a total of $10. Is the cost proportional? EXPLAIN.

a; x = 0.5

step-by-step explanation:

-10x = -5

x = 0.5

a

step-by-step explanation:

when a number is between two straight lines it means the absolute value.

to find absolute value you need to know how many numbers is that number away from 0.

when finding absolute value the number will always come out positive

so absolute value of -3 is 3

absolute value of 3/2 is 3/2

absolute value of -2 is 2

absolute value of 3.5 is 3.5

absolute value of -1 is 1

now put these numbers in order:

a)   |-1|, |3/2|, |-2|, |-3|, |3.5|

57.09 minus 7.0435 equals

step-by-step explanation:

just subtrach them both and u get the answer of 50.0465