1. the frosty ice-cream shop sells sundaes for $2 and banana splits for $3. on a hot summer day, the shop sold 8 more sundaes than banana splits and made $156.
2. a large pizza at palanzio’s pizzeria costs $6.80 plus $0.90 for each topping. the cost of a large cheese pizza at guido’s pizza is $7.30 plus $0.65 for each topping. how many toppings need to be added to a large cheese pizza from palanzio’s pizzeria and guido’s pizza in order for the pizzas to cost the same, not including tax?
3. the equations of two lines are 6x – y = 4 and y = 4x + 2 . what is the value of x in the solution for this system of equations?