Please help me with this mhm

Below!

Step-by-step explanation:

Question 3:

2/7 + 1/4=> 8/28 + 7/28=> 15/28

Hence, Option D is the correct answer.

Question 4:

Since you have like fractions in the mixed fractions, you can simply add them.

=> 3 1/5 + 2 3/5=> 5 4/5

Hence, Option A is the correct answer

Question 5:

=> 5 2/5 + 4 1/3=> 27/5 + 13/3=> 81/15 + 65/15=> 146/15=> 9 11/15

Hence, Option C is the correct answer

Question 6:

=> 7/8 - 3/8=> 4/8 = 1/2

Hence, Option C is the correct answer.

Question 7:

=> 4/5 - 2/3=> 12/15 - 10/15=> 2/15

Hence, Option A is the correct answer.

Question 8:

=> Since you have like fractions in the mixed fractions, you can simply subtract them.

=> 3 2/7 - 1 3/7=> 1 6/7

Hence, Option C is the correct answer.

Question 9:

=> Since you have like fractions in the mixed fractions, you can simply subtract them.

=> 9 1/3 - 2 2/3 => 6 2/3

Hence, Option A is the correct answer.

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Hoped this helped.

Intersecting secant-tangent theorem states that if a tangent segment and a secant segment are drawn to a circle from an exterior point, then the square of the measure of the tangent segment is equal to the product of the measures of the secant segment and its external secant segment.so to break it down: 1. pq acts as the tangent and ps as the secant with an intersection at p.sr = 21rp = 3x + 3pq = 4x + 4following to equation: tangent squared = the two segments multiplied by each otherso (4x + 4) ^ 2 = (3x + 3) • (21) simplifies to 16x^2 - 31x - 47 = 0 or (16x - 47)(x + 1) x = -1 or x = 47/162. pq acts as the tangent and ps as the secant with an intersection at p (again! )sr = 16rp = xpq = 15(15) ^ 2 = 16 • x225 = 16xx = 225/163. the interesting chords are proportional to each other so a ratio is possible to set up: ap dp 10 3 + x = = —— = pc pb 8 xcross multiple to get 10x = (3 + x)(8)x = 12