Answer:
Step-by-step explanation:
Let the number be 'x'
Half a number = 
Half a number increased by the quotient of p and t

Answer:
D
Step-by-step explanation:
A squared plus B squared equals C squared
Answer: CIRCLE C
Step-by-step explanation:
Answer:
x + 61 = 411
Step-by-step explanation:
Let x = the number of adult tickets sold
Let x + 61 = the number of student tickets sold
x + x + 61 = 761
2x = 700
x = 350
800-20 is 780. A third of 780 is 780(1/3) = 260. 780 - 260 = 520. 25% of $520 is 0.25(520) = 130. 520 - 130 = 390. One sixth of 390 is 390(1/6) = 65. 390 - 65 = 325. So, Bob kept $325 for himself.