In the equation, which is true about the value of x?
4(2x + 3) = x(3 +5) + 12
answer asap i need
a) x = -³/⁸, x = -³/²
b) no solution
c) single solution
d) infinitely many solutions

What are the measures of ∠a, ∠b, ∠c and ∠d? explain how to find each of the angle measure.

Two planes leave an airport at the same time, one flying east, the other flying west. the eastbound plane travels 20 mph slower. they are 1600 mi apart after 2 hr. find the speed of each plane.

Given: lines a and b are parallel and line c is a transversal. prove: 2 is supplementary to 8 what is the missing reason in the proof? statement reason 1. a || b, is a transv 1. given 2. ∠6 ≅ ∠2 2. ? 3. m∠6 = m∠2 3. def. of congruent 4. ∠6 is supp. to ∠8 4. def. of linear pair 5. ∠2 is supp. to ∠8 5. congruent supplements theorem corresponding angles theorem alternate interior angles theorem vertical angles theorem alternate exterior angles theorem