A rectangular sandbox cover will be built to protect an area of 72 square meters which are possible dimensions of the cover?check all that apply.

1st, 2nd, 4th and 5th

Step-by-step explanation:

area of rectangle

= l * b = 72sq m^2

let length (l) = 2m and

breath (b) = 36m

= 2 * 36 = 72

Similarly,

8 * 9 = 72

4 * 18 = 72

6 * 12 = 72

thus, the possible dimensions are 1st, 2nd, 4th and 5th

38.5

step-by-step explanation:

lets say, first number = r

second number = 3r+7

total = 49

(r)+(3r+7)= 49

4r+7 = 49

4r = 42

r = 42/4

r= 10.5

3r+7 = 3(10.5)+7 = 38.5

hope this