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Questions in Grade Middle-school

[Answered] If 478 watts of power are used in 14 seconds, how much work was done?

[Answered] Solve the equation for y in terms of x. 5x + 2y = 4

[Answered] Abby can buy an 8-pound bag of dog food for $7.40 or a 4-pound bag of the same dog food for $5.38. Which is the better buy?

[Answered] Is 12.89 an irrational number?

[Answered] Marvin completed 8 rounds of a trivia game. The scores he earned for each round are shown in the table: What was his average score?

[Answered] You can use this formula to work out total pay, £T, each week: \[ T = RH \] Where £R is the pay for one hour's work, and H is the number of hours worked. Find T when: a. R = £10 and H = 35 b. R = £12 and H = 40

[Answered] Reduce the fraction [tex]\frac{14}{20}[/tex] to its lowest terms.

[Answered] Calculate 23.5% of 128. Round to the nearest tenth if necessary.

[Answered] How were Westerners different? Why was farming ideal in the South?

[Answered] 25 lightning strikes in June, 51 lightning strikes in July, 62 lightning strikes in August. What is the average number of lightning strikes per day?