Mike spent half of his allowance going to movies. he washed the family car and earn seven dollars. what is his weekly allowance if he ended with eighteen dollars? show work.

Me asap! what is the slope of this line? enter your answer in the box.

Me solve this problem, and someone clearly explain to me how to solve it.1.) use the value of the discriminant to determine if the given trinomials has 2 real solutions, 1 real solution, or no real solutions.a.  x2  − 4x  − 7 = 0b. 4r2  + 11r  − 3 = 0c. 3m2  + 7 = 0d.  t2  + 2t  + 1 = 0

The triangles in the diagram are congruent. if mzf = 40°, mza = 80°, and mzg = 60°, what is mzb?