Qual o valor de cos45° + sen30° /cos60°

At a sale this week, a desk is being sold for $213. this is a 29% discount from the original price. what is the original price?

How do i multiply two digit numbers

Every weekday, mr. jones bikes from his home to his job. sometimes he rides along two roads, the long route that is shown by the solid lines. other times, he takes the shortcut shown by the dashed line. how many fewer kilometers does mr. jones bike when he takes the shortcut instead of the long route?