Can someone me understand this problem? i don't get how it was 210 because you have to put the decimal in? !

Why did the ice arena get so hot after the big game (this is math related google it to find the paper

Write the expression in complete factored form. 5n_(c - 3) - n(c - 3) =

Seattle, washington is known for being rainy. one day last month, 8 inches of rain fell in 1 1/2 hours. what us the rate of the rainfall expressed in ft per plzzz write a proportion i will give you 100 points