Amy is 3 years older than her brother. together, their ages are 14. amy wrote the equation x+(x+3)=14 to represent the sum of their ages. what does x represent in amy’s equation? amy’s age amy’s brother’s age the sum of their ages the difference of their ages

Find the multiplicative inverse of 8-12i

Expresa commuter train leaves downtown sation and travels at a average speed of 55 miles per hour towards the north side sation, which is 50miles away. thirty minutes later, express commuter train #7 leaves north side and travels at a average speed of 35miles per hour towards downtown sation. at the moment the two trains pass each other, how far(in miles) is train #12 from the downtown sation and how long(in minutes) has the #12 train been traveling

Aboard 60 in. long is cut two parts so that the longer piece is 5 times the shorter. what are the length of the two pieces?