Erin can do 30 math problems in 45 minutes. how long will it take her to do 50 math problems?

chase is right because he already been to the swings and he know how far it will be to get there

step-by-step explanation:

the circumference of a circle is, 10.676 cm.

step-by-step explanation:

the formula for circumference of a circle is given by:

where

c is the circumference of a circle and

d is the diameter of a circle.

given: diameter(d) = 3.4 cm and use

substitute these values in [1] we get;

cm

therefore, the circumference of a circle is, 10.676 cm

i'm pretty sure the answer is a. decreases with increase in