Brianna has 30 coins in her purse that are quarters and dimes. She has a total of $5.10. How many dimes does Brianna have in her purse?

What is the standard form of -5x^2+2x^4-11+x^3+3x

If f(x) = 4x - 3 and g(x) = x + 4, find (f - g) (x)

Katie wants to collect over 100 seashells. she already has 34 seashells in her collection. each day, she finds 12 more seashells on the beach. katie can use fractions of days to find seashells. write an inequality to determine the number of days, dd, it will take katie to collect over 100 seashells.