B: 140 fruit slices 70 minus 35 equals 35 right? Add 70 to 35, and that's 105 which is in the table. 105+35=140
Hope it helps
F(2a)=35
f(2a)=(2a)^2-1=35
(2a)^2-1=35
add 1 both sides
(2a)^2=36
sqrt both sides
2a=+/-6
divde 2
a=+/-3
a=3 or -3
65÷455= 7
Hope this helps!
5 + n = 17 that is what the equation would look like but if you wish to solve for the variable n then you would subtract 17 - 5 = 12, so that is the answer so tecnically I just gave you the answer to 2 questions please let me know if it helps.