Ratio of 4 days to 72 hours is .

4:3

Step-by-step explanation:

72 hours= 3 days

4 days : 72 hours

24 x 4 : 72

96 : 72

4 : 3 is your answer

d) 30 units^2

area of rectangle = l × b

we know,

length = 10 unit

breadth = 3 unit

applying the formula,

= l × b

= 10 × 3

= 30 unit^2

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27 + 13x + 15 = (x + 5)( =

step-by-step explanation:

27 + 13x + 15 = (x + 5)( = 27 + 13x + 15 = (x + 5)( = 27 + 13x + 15 = (x + 5)( =