Question

PLEASE HELP WILL MARK BRAINLY

Answer 1

Answer:

1.

12 maths book =40 pounds

21 maths book =40×21/12=70 pounds

2.it may be 4.8 or 4.7 sorry question is not clear

3.

perimeter of trapezoid =sum of all side=12+10+19+15=56in

4.

area of trapezoid =1/2 (s1+s2)×h

=1/2 ×12(10+19)=174in²

5.

4²=16

√4=2

so 4² is 8times grater.

Answer 2

Answer:

A, C, D, A, C

Step-by-step explanation:

This is one through five.