Find the surface area of the regular pyramid

Hillel is juggling flaming torches to raise money for charity. his initial appearance raises $500\$500 $500 , and he raises $15\$15 $15 for each minute of juggling performance. the amount rr r of money hillel raises is a function of tt t , the length of his performance in minutes. write the function's formula.

Solving algebraic equations 2m+3=11

The difference of two numbers is 40. find the numbers if 0.3 parts of one number is equal to 37.5% of the other one.