The closest distance towards venus to the sun is about 46,000,000 kilometers. the closest distance from neptune to the sun is about 4.5 x 10^9 kilometers. about how many times closer to the sun is venus than neptune? write your answer in standard notation

Ben bowled 124 and 188 in his first two games. what must he bowl in his third game to have an average of at least 160?

Solve the system of equations. y= 2x y= x^2 - 15

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¯¯¯¯¯¯¯¯)?