Base ten blocks are a mathematical manipulative used by students to learn basic mathematical concepts including addition, subtraction, number sense<span>, </span>place value<span> and counting. The student </span>can<span> manipulate the </span>blocks<span> in different ways to express numbers and patterns.</span><span>
(got this from google)</span>
<span>The quotient of two times a number and 19 =
2x
---------
19</span>
Answer:
C
Step-by-step explanation:
The 2 base angles in the triangle are congruent thus the triangle is isosceles.
Then the 2 sides are congruent in an isosceles triangle, thus
x = 12 → C