M<RXQ=(X+7)°,m<QXS=(7x+3)° and m<RXS=(11x-8)° find the value of x and m<RXS ​

Julia chooses a card at random from her set of cards. what is the probability that the card is labeled cat or hamster?

Which recursive formula can be used to determine the total amount of money earned in any year based on the amount earned in the previous year? f(n+1)=f(n)+5

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¯¯¯¯¯¯¯¯)?