How do u read 6,600,000,000,000,000,000,000 in numbers please I will give u the brainlliest answer

This doesn’t make sense to me it’s supposed to be lcm ( least common multiple )

Match each expression with its simplified form.

Tomas is making trail mix using granola and walnuts. he can spend a total of $12 on the ingredients. he buys 3 pounds of granola that costs $2.00 per pound. the walnuts cost $6 per pound. he uses the equation to represent the total cost, where x represents the number of pounds of granola and y represents the number of pounds of walnuts. he solves the equation for y, the number of pounds of walnuts he can buy. answer- b tomas added 6 to both sides of the equation instead of subtracting 6. just took the test