Tyler reads 215 of a book on monday, 13 of it on tuesday, 29 of it on wednesday, and 34 of the remainder on thursday. if he still has 14 pages left to read on friday, how many pages are there in the book?

Ametalworker has a metal alloy that is 30? % copper and another alloy that is 55? % copper. how many kilograms of each alloy should the metalworker combine to create 90 kg of a 50? % copper? alloy?

Divide the following fractions 3/4 ÷ 2/3 1/2 8/9 9/8 2

Each month, a shopkeeper spends 5x + 14 dollars on rent and electricity. if he spends 3x−5 dollars on rent, how much does he spend on electricity? for which value(s) of x is the amount the shopkeeper spends on electricity less than $100? explain how you found the value(s).