Aconstruction company dug a hole for a swimming pool. after the first day of digging, the bottom of the pool is -3.8 feet relative to the ground. after the second day of digging, the depth of the pool was -8 1/2 feet. how many feet did they dig on the second day?

a .4.2 feet b .4.7 feet c .11.8 feet d .12.3 feet

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?

Ineed with angles and the measure of them i have abc a is 65 and b is (3x-10) and c is (2x) find the value of x

Math it's appreciated. (picture provided)