8. Dale estimated that it will cost $300,000 to send his daughter to a private college in 17 years. He currently has $50,000 to deposit in an account. What simple interest rate must
his account have to reach a balance of $300,000 in 17 years? Round to the nearest
percent.

Marco is studying a type of mold that grows at a fast rate. he created the function f(x) = 345(1.30)x to model the number of mold spores per week. what does the 1.30 represent? how many mold spores are there after 4 weeks? round your answer to the nearest whole number. 1.30 represents the number of mold spores marco had at the beginning of the study; 985 mold spores 1.30 represents the number of mold spores grown in a given week; 448 mold spores 1.30 represents the 30% rate of weekly growth; 345 mold spores 1.30 represents the 30% rate of weekly growth; 985 mold spores

Adam used 1072.4 gallons of water over the course of 7 days. how much water did adam use, on average, each day?

What would be the reasons for lines 3 and 4? a. addition property; subtraction property b. addition property; solve c. substitution property; subtraction property d. substitution property; prove