How to model - 3x+7=28 with algebra tiles

What is the cost of lighting a 500-watt outdoor light for 8 hours, if electricity costs 7.5 cents per kilowatt-hour?

Factor x^4+2x^3-2x-1 completely

Solve for y. 2y + 10 = - 3y

Estimate the answer from the table or graph. The number of calories in different food items are given below. If Jeanne had a serving of salad and two slices of bread for lunch, what was her calorie intake?

Write a number in wt ich the the digit 8 is ten times the value of the 8 in 43.381

Convert 2.83 kl to L.

20) Use the distributive property to factor the expression. 10xz - 20yz A) z (10x - 20y) B) 10 (xz - 2yz) C) 10z (x - 2y) D) xyz (10 - 20)

Mr. Santino Need a total of 406 forks for his restaurant. He currently has 278 4th of each set has 12 Forks. What is the minimum number of sets of 40 should buy.

The joint of meat needs to be cooked for 30 minutes per 500 g plus an extra 20 minutes. How long will it take to cook a joint of meat weighting 2.5 kilo grand?

This means that if the length a = 2 then the length b = 3.236. in this case what is the length c