Josue planted a tree in his backyard that grows at the rate of 2 feet per week. If the tree is currently 10 feet tall, what would be the tree's total height after 4 months (assuming each month is 4 weeks long)?
Let's think: Since a month has four weeks, the tree will increase its height by 2 feet for 4 * 4 = 16 weeks after four months of growing. Since the tree grows at 2 feet per week, after 16 weeks, the tree would have increased its height by 2 * 16 = 32 feet. If the tree is currently 10 feet tall, its height after four months will be 10 + 32 = 42 feet.. The answer is: 42.

Smith's Bakery sold 6 more than four times the number of pies that Mcgee's Bakery sold. If Mcgee's Bakery sold 16 pies, how many pies did Smith's Bakery sell?
Let's think: Four times the number of pies that Mcgee's sold is 16 * 4 = 64 pies. Smith's Bakery sold 64 + 6 = 70 pies.. The answer is: 70.

Michael has a chicken farm. His chickens increase in number by 150 chickens annually. If the number of chickens on his farm now is 550, how many will he have after 9 years?
Let's think: The number of the increase in chicken after 9 years is 150 * 9 = 1350. So the total number of the chicken in Michael's farm will be 550 + 1350 = 1900.. The answer is: 1900.

Ronald wants to make profits by re-selling some phones he bought a week ago. He bought 200 units for just $3000, and he wants to gain a third of the initial investment in profits when all units are sold. Including the profit margin, what will be the selling price for each phone?
Let's think:
The profit Ronald wants is $3000 / 3 = $1000. The profit per phone sold will be $1000 / 200 phones = $5 / phone. The cost of each phone is $3000 / 200 phones = $15 / phone. The selling price including the profit will be $15 / phone + $5 / phone = $20.. The answer is: 20.