Can someone simplify 9^-2.5?

Which equation shows y = - 1/2 x+4 is in standard form?

What number is 70% of 45

Solve using any method. 2 x^2 + x - 5 = 0

A tool set is on sale for 424.15 dollars the original price of the tool set was $499.00 what percent of the original price is the sale price

In the decimal number. 98703, the 0 holds what place value? A. Hundred-thousandths B. Ten-thousandths C. Thousandths D. Hundredths

Round off 8,489,600 to the nearest thousand.

The speed of a passenger train is 18 mph faster than the speed of a freight train. The passenger train travels 270 miles in the same time it takes the freight train to travel 180 mph. What is the speed of the passenger train?

You served food to a group at a restaurant. The total cost of the food was $42.00. The sales tax is 8% of the cost of food. The group asked you to add 20% of the original cost of food for a tip. What was the total cost for the group?

Translate to an algebraic expression. 28 more than D d - 28 28 = d 28 - d d+28

Which is greater? 0.4 or 0.127