Which problems result in a positive number?

choose all answers that are correct.

a.
–4.2 – 3.1

b.
3 + (–5.4)

c. 7 1/2- (-3 1/4)

d.
–2 – (–3.6)

Which two fractions are equivalent to 6/11? 6/22 and 18/33 12/22 and 18/33 12/22 and 18/22 3/5 and 6/10

Will mark 50 show all what is the solution to the system of equations? use the substitution method and show your work. -5x+y= -3 -15 x+3y=7 explain what your answer in part (a) tells you about the association of the lines in this system.

Five infinity stones cost $16.80. what is the price per infinity stone ?