12. multi-step the classroom has 12 chairs on
the right side of the room, 15 chairs on the
left, and 9 chairs stacked in the back. mrs. kim
wants to divide the chairs evenly into 3 groups.
which expression represents the situation?
(a) 12 + 15 +9x3
b
©
d
12 + 15 + (9-3)
12+15+9+3
(12 + 15 + 9) = 3

Helll ! 1,400 tons of wheat of two different varieties was delivered to the silo. when processing one variety, there was 2% of waste and 3% during the processing of the second variety of wheat. after the processing, the amount of remaining wheat was 1,364 tons. how many tons of each variety of wheat was delivered to the silo?

How to do a maths question? i have a mock

The equation m = 19.32v can be used to find the mass m in grams of a pure gold coin with volume v in cubic centimeters. carl has a coin with a mass of 37.8 grams. the coun's volume is 2.1 cubic centimeters. could the coin be pure gold? explain your reasoning. whoever answers this correctly gets marked brainliest! this is also worth a decent amount of points than normal questions!