The number 49 is decreased to 45. What is the percentage by which the number was decreased, to the nearest tenth of a percent?

How much pure acid is in 780 milliliters of a 12 % solution?

Rita, Tony, and Deon have a total of $86 in their wallets. Rita has $ 10 less than Tony. Deon has 2 times what Rita has. How much do they have in their wallets

What is the reciprocal of - 3/7

Write 6 powered 0 in positive exponents

Find the value of x for the equation to be true. -8x - 3 (2x + 1) = 67

Which expressions could complete this equation so that it has an infinite number of solutions? 9x-3 (x+8) = A. 6x-24 B. 6 (x-3) + 6 C. 14+5x-34 D. 8 (x-3) - 2x

The number of horses occupying stalls at the county fairgrounds can be modeled by the following function, where x represents the number of days since the first of June. h (x) = -3x^2+30x+225.

Erik took a trip to see his friend Mike who lives 308 miles away. He left his place at 10 AM driving at 70 mph. In 2 hours, his friend Mike left his place driving towards Erik at an average speed of 50 mph. At what time will they meet?

Selecto two ratios that are equivalent to 3:12

Solve this equation for x. Round your answer to the nearest hundredth. 0.69=log x