How can 3 over7 times 28 be illustrated by using an array of 4 rows of 7 dots in each row OA Circle 4 columns of dots. B. Circle 4 rows of dots. Ос. Circle 3 columns of dots. < Prey 64 of 73

12

step-by-step explanation:

12 + 5 = 17

12x2=24

24-7=17

faster, im not sure why but i know it is faster

the answer to your question is c.)   volcanoes built the mountains and earthquakes tore them down.

step-by-step explanation:

let x and 400 - x be the two numbers.  

==> 0.80x + 0.85(400 - x) = 400 - 68 from the statement of the problem.  

< ==> 0.80x + 0.85(400 - x) = 400 - 68  

==> 340 - 0.05x = 332  

< ==> -0.05x = -8 ==> x = 160, the first number ==> 400 - x = 240, the second number.