Math Quiz :( 7b lina A Diaz

Alex is paid 1.4 times his normal hourly rate for each hour he works over 30 hours in a week .Last week he worked 35 hours and earned $436.60. Wath is julio´s normal rate (R).

Valentina bought a total of 8 notebooks and got 16 free pens. Find the unit rate

Samuel is saving money to buy a bike.The bike costs $245.He has $ 125 saved, and each week she adds $15 to her savings. How long will it take him to save enough money to buy the bike?

If Karina has 1000 books and Isa give her 1000 books more .How many books does karina haver?

Aleja bought 3 notebooks at $1.20 each; a box of pencils at $1.50 and a box of pens at $1.70. How much did Linda spend?

A machine fills 150 bottles of water every 8 minutes. How many minutes it takes this machine to fill 675 bottles?

A school has 10 classes with the same number of students in each class. One day, the weather was bad and many students were absent. 5 classes were half full, 3 classes were 3/4 full and 2 classes were 1/8 empty. A total of 70 students were absent. How many students are in this school when no students are absent?