(a) Leela saved Rs. x from her last month's pocket money. If her monther gave her Rs. 45 as this month's pocket money, then how much money does Leela have
in all?
(b) A shopkeeper has y number of boxes of 15 pencils each. How many pencils does
the shopkeeper have in all?
(c) A baker baked z number of cakes on a particular days. If he/she managed to sell
17 of tem, then how many cakes are left with the baker?
(d) Prashant divided p number of toffees among his 6 firends such that each friend
got 4 toffees each. How many toffees did Prashant have in all?

Titus works at a hotel. part of his job is to keep the complimentary pitcher of water at least half full and always with ice. when he starts his shift, the water level shows 4 gallons, or 128 cups of water. as the shift progresses, he records the level of the water every 10 minutes. after 2 hours, he uses a regression calculator to compute an equation for the decrease in water. his equation is w –0.414t + 129.549, where t is the number of minutes and w is the level of water. according to the equation, after about how many minutes would the water level be less than or equal to 64 cups?