A chemist needs a 70% solution of tannic acid. How much distilled water must he add to 5 gallons of a 90% solution of acid to obtain the 70% solution?

Find the approximate area of a circle with radius equal to 8 ft.

Choose all that correctly compute the total cost, including the discount and tax. (round to the nearest hundredth) 25% off $39.25, and an 8% sales tax total cost = $31.79 20% off $66.75, and an 8% sales tax total cost = $57.67 40% off $45.

Does 8-x=9 have one or more values?

Given two 2x3 (2 rows, 3 columns) arrays of integer, x1 and x2, both already initialized, two integer variables, i and j, and a boolean variable x1rules.

A retailer knows that n games can be sold in a month if the price is dollars per game. If he buys each game for $8, and if he wishes to make a profit of at least $160 per month on sales of this game, how many games must he sell each month?

Apply the distributive property to factor out the greatest common factor. 24j-16

Kylie drink 35% of 400 mm container of water Eugena drunk 45% off of 350 mL container of water who drink more water explain how you know

Find the square root of 64/25

Use the definitions and theorems of this section to evaluate and simplify the following expression. Be sure to express answers with positive exponents. (b3) 2

One method of indirect measurement involves setting up a right triangle and measuring one of the acute angles.