Help me because I'm a weeb and have no math skills :)

q5. £40.50

q6. didn't know that one sorry

q7. $114.24

Step-by-step explanation:

q5.  55% of £90

10% = 9

5% = 4.5

to get to 50% you do 10% x 5 = 50%

you then do 9 x 5 = 45

after that you add the 45 + 4.5 = 49 .50

after that you do £90 - 49.50 = £40.50

q7.  12% of 102

10% = 10.2

1% = 1.02

2% = 2.04

12% = 10.2 + 2.04 = 12.24

then you do 102 + 12.24 = 114.24

a.

step-by-step explanation:

step 1 distribute 2 to every term in the parentheses

step 2 add 10 on both sides of the equal sign

answer is b

step-by-step explanation: