Aplayer earns 30 points for solving an easy puzzle and 60 points for solving a hard puzzle. tina solved a total of 50 puzzles playing this game, earning 1,950 points in all. how many hard puzzles did tina slice?

What is the rotational symmetry of a wheel

Find the value of the variable and the length of each secant segment.

1c) the number 131 is a term in the sequence defined by the explicit rule f(n)=5n-4. which term in the sequence is 131? 2a) write the first four terms of the function f(n)=n^2-1 2b) what is the 10th term of the sequence defined by the explicit rule f(n)=n^2-1 2c) the number 224 is a term in the sequence defined by the explicit rule f(n)=n^2-1. which term in the sequence is 224?