What are the properties of 2x +5=5+2x
8(x−1)=8x−8
(4×5)×6=4×(5×6)
5×6=6×5
(3+4)+5=3+(4+5)
13⋅3=1
9+0=9
3x+(−3x)=0
1⋅7=7

plz i need help

Question 10 of 211 pointuse the elimination method to solve the system of equations. choose thecorrect ordered pair.10x +2y = 643x - 4y = -36a. (4,12)b. (-3, 11)c. (2,10)d. (-5, 8)

Bocephus has a bag full of nickels and dimes. if there are 3 times as many dimes as nickels, and he has $\$36.05$ in his bag, how many nickels does he have?

The relative growth rate for a certain type of fungi is 60% per hour.a small culture has formed and in just 6 hours the count shows to be 20,273 fungi in the culture.what is the initial number of fungi in the culture?