Which equations are true? Select all that apply. -4 = 21
-49=71
-25 = 251
0-136 = 61
0-181 =-9
-V100 = 101

8+10

step-by-step explanation:

you multiply 4 by 2 and 5 by 2

no because after the troops were pulled many blacks were killed by hangings lynchings and other cruel ways which in a way interrupted the reconstruction of the south and differed from the way abraham lincoln had an idea of reconstruction

chemists are often responsible for designing a chemical reaction and analyzing the products obtained from it. one significant part of designing a chemical reaction is determining the amount of each reactant that is needed and the amount of each product that will be produced. in order to do so, chemists use stoichiometry, the quantitative relationships between reactants and products.