Angle A and B are vertical angles. If m angle a = (8x - 20) degrees and m angle b = (3x - 5) degrees find value of x. Please answer correctly

If the cost to mail a package is an initial $5 and $0.28 for every pound the total cost to mail a package was $11.27, how much did the package weigh?

Is triangle jkl congruent to triangle rst? if so, what is the scale factor?

Long division setup showing an incomplete calculation. 12 is in the divisor, 6839 is in the dividend, and 5 hundreds and 6 tens is written in the quotient. 6000 is subtracted from 6839 to give 839. an unknown value represented by a box is being subtracted from 839. what number should be placed in the box to complete the division calculation?