The lenght of the arc of a sector of a circle is given by the formula L=2πRa/360

R is the radius of the circle and a is the central angle in degrees

A)Solve for a

B)Solve for R

C) Find L when R=10in and a=30°.Use π≈3.14

i think the answer is b.

step-by-step explanation:

not 100% sure though.

it would take 7/10 of an hour too fill the pool.

step-by-step explanation:

the answer is $4.45. i started by figuring out the cost of the plates and napkins. the easiest way to figure this cost out is through the tax. we know the way they found the tax is by multiplying the cost of non-food items by the tax rate (5% or 0.5). so, all we have to do to find the cost before tax is set up an equation and work this formula backwards. the equation is 0.19=0.05x where x is the cost of the plates and napkins. now all you do is divide both sides by 0.05 to come up with 3.8=x. now that we know the cost of the plates and napkins is $3.80, all we have to do is subtract this cost from the total cost of $8.25 giving us the cost of the watermelon which is $4.45.

d=22

step-by-step explanation: