Olivia has lunch at a restaurant. If the bill was $14.50 and Olivia wants to leave a 20% tip, what is the amount she should leave for the tip?

George is 187 cm tall. his son, ralph, is 142 cm tall. who casts the longer shadow. george when the sun is 65° above the horizon, or ralph when the sun is 56° above the horizon? how much longer? (nearest centimeter)

Mr switzer needs to buy new 1-foot tiles to cover his bathroom floor. the floor is 12 feet long and 8 feet wide. each square foot of tile will cost $1.79. in dollars what will be the total cost of the tiles he needs to buy.

S-7< 3 i need answering this problem someone asap answer