What is the area of the garden.

B. 336 square feet

Step-by-step explanation:

We need to find the length and breadth of the garden before finding the area.

Length of garden = 30 - 3 - 3

                             = 24

Breadth of garden = 20 - 3 - 3

                               = 14

Area of garden = 24 × 14

                          = 336 square feet

answer: it is d

step-by-step explanation:

x = ±sqrt(10)

step-by-step explanation:

5 - 2x² = -15

subtract 5 from each side

5-5 - 2x² = -15-5

-2x^2   = -20

divide by -2 on each side

-2x^2   /-2= -20/-2

x^2 =10

take the square root on each side

sqrt(x^2 )=±sqrt(10)

x = ±sqrt(10)

check:

5 - 2x² = -15

+sqrt(10)

5 - 2(sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

-sqrt(10)

5 - 2(-sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15