Arental hall has 60 tables.
55% of the tables have 10 chairs at each table.
the remaining 45% of the tables have 8 chairs at each table. how many chairs are there in total?

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)

2x + 1 < 5 solve the following inequality. then place the correct number in the box provided.

Naomi’s parents want to have 50,000, saved for her college education, if they invest 20000 today and earn 7% interest compound annually, about how long will it take them to save 50 thousand