Write 4.55 as a mixed number and as a improper fraction

When ∆rst is translated 4 units down, what are the apparent coordinates of t’? give 15 points

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¯¯¯¯¯¯¯¯)?

Evaluate the expression for the given value of the variable 2×(c2-5) for c=4