How do you solve the questions pl i really need

The answers are given in step-by-step explanation

Step-by-step explanation:

In question 4,

Elina walked 12 miles then she walked 0.25 that distance.

We have to find the distance she walked

Distance=12+0.25 of that distance

              = 12+0.25(12)

              = 12(1+0.25)==15 miles

Hence, A, B, and C are correct

In question 5,

Given circumference is 600 m

we have to find the good approximation area of circle

circumference = 600 m

=300 ⇒ r=95.49

Area of circle is

                       =

Hence, the good approximation area of circle is

In question 6,

Given d=3t where d represents the distance between the snail and rock in inches and t represents the time in minutes.

Number 3 represents that distance between snail and certain rock is 3 times that of time.

given distance is 9 inches we have to find the time i.e d=3t ⇒ 9=3t ⇒ t=3 minutes.

Hence, will be 3 minutes when snail is 9 inches far from certain rock.

Now, times given 9 minutes we have to find the distance, d=3t=3(9)=27 inches.

3: 2

step-by-step explanation:

shorter piece is 2: 3, so just reverse it, and you get 3: 2

d

step-by-step explanation: