Adam bought an 8 foot wooden board. he used 1 1/2 feet to make shelf and 3 3/8 feet to make a storage unit for toys. he need 4 feet of the board to make another shelf. does adam have enough wooden board left to make the other shelf?
explain.

If f(x) = 3-2x and g(x) =1/x+5 to what is the value (f/g)(8)

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¯¯¯¯¯¯¯¯)?

Which of the following points is a solution to the system of equations shown? y - x = -1 x + y = -5