Answer:
20*30=600
This could be written out with addition instead, as 20 'times' 30
30+30+30+30+30+30+30+30+30+30+30+30+30+30+30+30+30+30+30+30
=600
Answer:
54
Step-by-step explanation:
6/100 = x/90
6×90=540
540/100=54
Answer:
Radio waves have the longest wavelength out of the electromagnetic spectrum. It is followed by (in order) microwaves, infared waves, visible light, ultraviolet rays, x-rays, and gamma rays.
He pushed them together to have the most surface area when he was done, so that tells us he put the two smallest sides together.
Essentially, he put them end to end to make a really long prism. The two sides pressed together are both 3x4 so
2(3x4) = 2(12) = 24