Which number sentence has exactly one solution? A. x + 5.4 > 8
B. 14(x – 5) = 13
C. 3x + 7.5 ≤ 9
D. 12x – 19 > 24

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.

are ya tryin to ask something or is this a statement

can someone me: the midsegment through the legs of an isosceles triangle is 4 in. find the sides of the triangle if its perimeter is 20 in. ,   and point g is the centroid of the right △abc with hypotenuse ab=18 in. find cg.