2 years ago

PLEASE HELP WILL MARK BRAINLY

Mathematics

2 answers:

Korolek [52]2 years ago

7 0

Answer:

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

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

area of trapezoid =1/2 (s1+s2)×h

=1/2 ×12(10+19)=174in²

4²=16

√4=2

so 4² is 8times grater.

jasenka [17]2 years ago

4 0

Answer:

A, C, D, A, C

Step-by-step explanation:

This is one through five.

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