Julio says, "If you subtract 15 from my number and multiply the difference by - 7, the result is - 119." What is Julio's number?

Me with this assignment ! i only partially understand, so explain. also it's a work sample. at the championship bike race, steve and paula were fighting for first place. steve was 175 feet ahead of paula and had only 300 feet left to go. he was very tired and was going only 9 feet per second. paula was desperate to catch up and was going 15 feet per second. who won the bike race and by how far did she/he win?

Change negative exponents to positive. then solve. round to four decimal places

Shirley spelled 12 of her 15 spelling words correctly on the test. what percentage did shirley get on the test?