CAN ANY ONE GIVE THE ANSWER OF 4,5,6,7,8,
PLZZZZZZZZZZZZZZ
VERY URGENT
I WILL MAKE YOU BRAINY

cannot complete it now, I gotta go!!!

Step-by-step explanation:

4.

perimeter P=100cm

length l = 35 cm

breadth b =

P = 2l + 2b = 2(l+b) therefore 2(l+b) = 100

l+b=50  you know that l = 35

b = 50-35 = 15cm

area is l*b=35*15=525 cm²

5.

ls = square side

lr = length rectangle

br = breadth rectangle

Area square = Area rectangle

ls*ls = lr*br  we know that ls = 60 m and that lr=90

so we can rewrite is as 60*60 = 90 * br

3600 = 90*br

br = 3600/90 = 40m

6.

length = 40cm, breadth = 22cm

Perimeter = 2(40+22) = 124 cm

a square sides are all equal so

side = 124/4 = 31cm

area of the square = 31*31 = 31²=  961 cm²

area of the rectangle = 40*22= 880 cm²

square has a wider area

In fractions and ratios, they're typically simplified. For example, 6:4 can be simplified down to 3:2. A simplified ratio like 4:3 could be changed into 8:6.

Knowing this, we technically have two ratios in this question: 5:2 and 20:w (whereas 'w' represents the unknown number of wrong answers)

Can you sort of guess where this is going? We have to "unsimplify" the 5:2 ratio in order to find what 'w' is.

In order to turn 5 into 20, we simply have to multiply both sides by 4.
5:2 = 20:8

Looks like we've found our answer.
Billy answered 20 questions right and 8 questions wrong.

There were 28 questions on the quiz.

If you need me to explain anything I did here, just let me know :)
-T.B.