Mr. Romanov teaches art and is planning for an upcoming project. Each of his 45 students will need 2One-fourth feet of twine. The twine is sold in 4-foot spools and he cannot purchase a partial spool. How many spools of twine will Mr. Romanov need to buy? PLEAE AWNSER QUICK ILL GIVVE BRAINLIEST

1. what is the measure of ∠abc? what is the measure of ∠abd?

The perimeter of a triangle is 69 cm. the first is 5 cm shorter than the second side. the third side is twice as long the first side. find the length of each side

Arley is building a model of a city map. in one part of the city, three roads form a right triangle, which harley draws as triangle abc, with the following measures: m∠b=90° and m∠a=30°. in his scale model, the hypotenuse of triangle abc, ac¯¯¯¯¯¯¯¯, has a length of 817−−√ cm. what is the value of a (the length of bc¯¯¯¯¯¯¯¯)?