Evalunio 2-whene-2,0 - -. and v-
evaluate r-
when r = 3, 4 = -8, and v= -

step-by-step explanation:

ok so im not 100% sure but you would start by adding 5.1t and 1.9t beacuse they have the same variable. that is 7t.   then add -3.6 + 1.2 which is -2.4

so then keep that as -2.4 + 7t. i apologize if this is incorrect. best luck on your test < 3

51

step-by-step explanation:

73-22=51 the   mass number minus the amount of protons gives you the amount of neutrons

1/3

step-by-step explanation:

to find this, you can divide 12 by 4 which is 3 or you can multiply 4 until you reach 12 (4x3=12). both should give you 3, meaning theres three times less bananas than there are oranges.