বাংলাদেশ পেট্রোলিয়াম ইন্সটিটিউট এর সহকারী পরিচালক নিয়োগ পরীক্ষা -২০২০

A television with a price of $300 is to be purchased with an initial payment of $60 and weekly payments of $30. Which of the ...

A television with a price of $300 is to be purchased with an initial payment of $60 and weekly payments of $30. Which of the following equations can be used to find the number of weekly payments, 'w' required to complete the purchase, assuming there are no taxes or fees?

300 = 30w
300 = 30w - 60
300 = 30w - 30
300 = 30w + 60

h = 3a + 28.6 A pediatrician uses the model above to estimate the height b of a boy, in inches, in terms of the boy's age a,...

h = 3a + 28.6 A pediatrician uses the model above to estimate the height b of a boy, in inches, in terms of the boy's age a, in years, between the ages of 2 and 5. Based on the model, what is the estimated increase, in inches, of a boy's height each year?
10
5
7.5
3