Which expressions are equivalent? a. 3v + 4 and 3 ( v + 4)
b. 5 + 4 + 3 and 3 + 4 + 5
c. 9 - 8 - 7 and 7 - 8 - 9
d. (5x - 1) and 5x - 1(2)

Atriangle includes one angle that 72º. which pair could be the measures of the other two angles of the triangle? a. 9º, 9º b. 26º, 46º c. 53º, 55º d. 72º, 108º

Me because some of question i don’t understand

Sammie has 3 times as many goldfish as nora. nora has 4 goldfish. how many goldfish do sammie and nora have in all?