Suppose Rick has set aside $50 to spend on eating out and entertainment each week. The price of eating out is $15 and the price of going out for entertainment is $10. What is Rick’s opportunity cost of entertainment? Assume entertainment is on the horizontal axis.

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)

During your cycling trip, you and your friends often stayed in hostels. the prices of these are listed below. hostel standard room (price per night) with breakfast (price per night) super sleep hostels £22.45 £28.65 normandy nights £18.55 £25 zzzola hostels £24.50 £30.99 belgian beds £11.20 £18.55 night-time rest days ? £33 what is the range in cost for a single night, including both standard room prices and with breakfast prices?

Which shows the correct solution of the equation 1/2a+2/3b=50, when b=30?