**Answer:**

x < -5

**Step-by-step explanation:**

first you do 12 - 7 which equals to 5

and then put x < becuase -12 is less than -7

**Answer:**

403+40√3 ft^2

**Step-by-step explanation:**

(20+√3)(20+√3)

400+20√3+20√3+3

403+40√3

Hopes this helps please mark brainliest

Answer: 8 inches: 10 hours

Step-by-step explanation:

From the above question, we are informed that during the last snow storm, the snow accumulated at 4/5 inch per hour and that the snow continues at this rate for 10 hours.

The the ratio of the amount of snow in inches to the amount of time in hours first thus:

We have to calculate the amount of snow in inches first. This will be:

= 4/5 × 10

= 8 inches

Therefore, the the ratio of the amount of snow in inches to the amount of time in hours will be 8 inches for 10 hours

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**Answer:**

(4x + 5)(4x - 3)

**Step-by-step explanation:**

Given

16x² + 8x - 15

Consider the factors of the product of the x² term and the constant term which sum to give the coefficient of the x- term.

product = 16 × - 15 = - 240 and sum = + 8

The factors are + 20 and - 12

Use these factors to split the x- term

16x² + 20x - 12x - 15 ( factor the first/second and third/fourth terms )

= 4x(4x + 5) - 3(4x + 5) ← factor out (4x + 5) from each term

= (4x + 5)(4x - 3) ← in factored form