Answer:
71
Step-by-step explanation:I think I solve it a weird way but here it is.
70 times 5= 350
65+68+66+80= 279
350-279= 71
Check:
65+68+66+80+71= 350
350/5=70 which means 71 is the correct answer
im pretty sure the answer is 0.7
Answer:
5n-4
Step-by-step explanation:
The rule of the sequence is 5n-4.
If n=1 then 5(1)-4=1 because 5x1=5 and 5-4=1
If n=2 then 5(2)-4=6 because 5x2=10 and 10-4=6
If n=2 then 5(3)-4=11 because 5x3=15 and 15-4=11
If n=2 then 5(4)-4=16 because 5x4=20 and 20-4=16