This one is probably really easy i just don't see the sequence rule!
i dont even need the rule, just the next 3 numbers
-3,0,4,9,
you!

15,22,30 are the next 3 numbers

Step-by-step explanation:

-3,0,4,9,...

Add 3, then add 4, then add 5,

The next would be add 6

9+6 = 15

Then add 7

15+7 =22

Then add 8

22+8 = 30

The sequence is given by

an = 1/2 (n^2 + 3 n - 10)

34.5 cm

step-by-step explanation:

generally for a circular segment of angle, θ° and radius r

arc length

= (θ/360) x circumference

= (θ/360) x 2πr

in our case, θ = 60°, π=3.142 and r = 33 cm

substitute into above formula

arc length

= (60/360) x 2(3.142)( 33) = 34.5 cm