-2 a b are a match. hope this helps 2-2=4
To find the answer, you need to solve for b.
2(2b + 3) = 12 divide both sides by 3
2b + 3 = 6 divide both sides by 2
2b = 3 subtract 3 from both sides
b = 1.5 divide both sides by 2
b = 1.5 satisfies the equation. if you plug 1.5 in, you get that the equation is true.
√52 -√13 +√117
= 2√13 -√13 +3√13
= 4√13 . . . . matches selection A
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√52 = √(4·13) = (√4)(√13) = 2√13
√117 = √(9·13) = (√9)(√13) = 3√13
it would prob be be the letter c and u times 25 and 10 then divide the 5