Answer:
-1
Step-by-step explanation:
If you add 4 to both sides you get
x-4+4=-5+4
the -4and+4 cancel out so you get
x=-1
Answer:
33%
Step-by-step explanation:
If there are 150 teachers and 50 are math teachers to find the percentage you have to divide 50 by 150 and get .33333333 repeating so its 33%
His lap percentage will be 25% when he loses the sing price