Solve for the variable.*
-a + 3a =10
A. {-9}
B. {5}
C. {-11}
D. {2}

What is the relationship between all triangles that can be drawn given the same three angles

A33 gram sample of a substance that's used to detect explosives has a k-value of 0.1473. n = noekt no = initial mass (at time t = 0) n = mass at time t k = a positive constant that depends on the substance itself and on the units used to measure time t = time, in days

Use complete sentences to differentiate between a regular tessellation, and a pure tessellation. be sure to include specific types of polygons in your explanation.