Determine the percentage of increase or decrease between the first amount and the second. express an increase with a positive percentage and a decrease with a negative percentage.
original amount = 100
new amount = 94
a) -6%
b) 36%
c) 18%
d) -94%

What is the measure of angle z in this figure? enter your answer in the box. z = ° two intersection lines. all four angles formed by the intersecting lines are labeled. clockwise, the angles are labeled 43 degrees, x degrees, y degrees, and z degrees.

Solve 3x-18=2y and 5x-6y=6 by elimination show work

Jack did 3/5 of all problems on his weekend homework before sunday. on sunday he solved 1/3 of what was left and the last 4 problems. how many problems were assigned for the weekend?