Simplify the polynomial expression
(3y2 + y + 10) - (2y2 - 7y + 12)

answer options

y2 + 8y - 2
5y2 + 8y - 2
y2 - 6y + 2
-y2 - 8y + 2

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¯¯¯¯¯¯¯¯)?

Regular price 75$ discount 25%sale price?

Jada has a meal in a restaurant she adds up the prices listed on the menu for everything they ordered and gets a subtotal of $42.00. after tax the total is 45.99. what percentage of the subtotal is the total?