Solve.

5. During the summer, Jayden

volunteers at the library for 20 hours

each week for 7 weeks. How many

hours does Jayden volunteer in all?

A car uses 7litres of pétrole to coker 28km. How many litres of pétrole does hé use to coker 64km

If 45 mL of H2O are required to mix 100 g of casting plaster, how many milliliters would you need for 250 g of plaster?

A toxic radioactive substance with a density of 9 milligrams per square centimeter is detected in the ventilating ducts of a nuclear processing building that was used 55 years ago.

What is 988:96 estimating?

a bottle of tomato juice contains 247.5 mg of vitamin C and has 5.5 servings. A bottle of grape juice contains 258 mg of vitamin C and has 3 servings. Mrs johnson wants to compare the amount of vitamin C in the juices.

Find the present values of these ordinary annuities. discounting occurs once a year. a. $600 per year for 12 years at 8%

2km 303m - 556m equal to

Which amount is a reasonable tip for an airport skycap? A. $2 total B. $2 per bag C. $5 per bag

A coin has two sides: heads and tails. A die has six sides, numbered 1 through 6. If you flip the coin and roll the die, what is the probability that you flip "heads" and roll a number less than 3?

The angle / theta_1θ 1 theta, start subscript, 1, end subscript is located in Quadrant / text{I}Istart text, I, end text, and / cos (/theta_1) = / dfrac{3}{8}cos (θ 1 ) =