Jonathan and members of his Spanish Club are going to Costa Rica. He went on vacation with 15 bills totaling %660. He had $20, $50, and $100 bills in his wallet. He has twice as many $20 bills as $50 bills. How much money did he bring in $50 bills?

240 seventh graders and two-thirds of the students participate in after-school activities how many students participate in after-school activities

The first week samantha learned to read braille, she could read 10 words per minute. in the second week she increased her speed by 20%. in the third week she increased her speed again by another 25%. how many words could she read per minute by the third week? hurry and tell me!

Triangle abc was translated 2 untits to the right and 3 units down. write the algebraic rule that describes the translation that was applied to triangle abc to create triangle a'b'c'.