An elementary bake sale is selling brownies and cookies. Their goal is to make $500 dollars. Each brownies is sold for $2 and each cookie is sold for $1.50. Write an equation to represent the number of brownies, b, and cookies, c, that must be sold to make $500.

Carson has only $20 bills and $10 bill in her wallet. the total value of the bills is $50. she has 1 more $20 bill than $10 bills. how many each kind of bill does carson have? a. one $20 and two $10 bills b. two $20 bills and one $10 bill c. one $20 bills and three $10 bills d. two $20 bills and two $10 bills

Imogene invested $8,000 in a bank account that pays 8 percent simple interest at the end of each year. her friend invested the same amount in stocks where the growth of the investment is represented as 2,000 times the square root of 2 less than the time lapsed in years. if y1 and y2 represent the amount earned in dollars and t is the time lapsed in years, which system of equations correctly represents the situation?

In triangle opq right angled at p op=7cm,oq-pq=1 determine the values of sinq and cosq