Marsha has two numbers, $a$ and $b$. When she divides $a$ by 70 she gets a remainder of 64. When she divides $b$ by 105 she gets a remainder of 99. What remainder does she get when she divides $a+b$ by 35?

Last month, a 770 g box of cereal was sold at a grocery store for $3.10. however, this month, the cereal manufacturer launched the same cereal in a 640 g box, which is being sold at $2.50. what is the percent change in the unit price?

Including 6% sales tax, an inn charges $135.68 per night. find the inns nightly cost

Adele is five years older than timothy. in three years, timothy will be 2/3 of adele’s age. what is adele‘s current age?