What is the surface area of a pyramid thr side lenghths of the base are equal 7 is the base 5 is the side length

Maria donates a fixed amount, a, to a charity each month. if she donates $300 in 12 months, what is the equation for a? a. a + 300 = 12 b. a × 300 = 12 c. a × 12 = 300 d. a + 12 = 300 e. a + 32 = 100

Find the area of the unshaded square

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