I need help. Thank you.

27

Step-by-step explanation:

green is 30%

blue is 50%

red is 6 marbles which when calculated is equal to 20%

blue would then be 15 marbles as the whole 100% would equal to 30 marbles

if 40% is added which is also 12 marbles then 15+12 = 27

3.how is solving radical equations different than solving linear equations?

step-by-step explanation:

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