1. build a fence mrs. chen wants to build
a fence around her yard so that her
dog, fluffy, can run free. the yard she
wants to fence is 60 feet by 30 feet. the
fencing is sold by the linear foot, so in
order to figure out how much fencing
she needs, mrs. chen needs to know
the perimeter of the yard.
find the yard's perimeter.

  180 ft

Step-by-step explanation:

The perimeter of a geometric figure is the sum of the lengths of its sides. Opposite sides of a rectangle are of equal length, so the perimeter can be figured as twice the sum of the length of adjacent sides:

  2(60 ft + 30 ft) = 180 ft

Mrs. Chen needs 180 feet of fence.

the answer is b

step-by-step explanation:

75 tickets have been sold so far.

step-by-step explanation:

in this question it is clearly mentioned that 45 children's tickets have been sold and this number is 60% of the total tickets sold.

now let's assume the total number of tickets sold be x.

then 60% of x = 45

⇒

⇒ x(.6) = 45

by dividing with .6 on both the sides of the equation

⇒ x = 75

therefore 75 tickets have been sold so far.