Sonya goes into a newsagent's. She buys 3 items. They cost £1.25, 45p and £2.50. Sonya uses her calculator to check the total cost. The calculator gives this answer. 4.2 Is this answer correct?.

No she is not correct

Step-by-step explanation:

Because when you add 1.25+0.45+2.50=4.14

not 4.2

answer: what do you mean

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|