Lynn has grades of 93, 75, and 86 on three math tests. What grade must she make on the next test to have an average of exactly 81 for the four tests?

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How do you plot y = - 1

A new car that is a gas - and electric-powered hybrid has recently hit the market. The distance travelled on 1 gallon of fuel is normally distributed with a mean of 50 miles and a standard deviation of 8 miles.

What is the meaning of Arch

The nth term of a sequence is 3n+2 a) work out first three term of sequence. b) work out the tenth term of the sequennces

Perry bought one jar of sun-dried tomatoes for $4. How many jars of sun-dried tomatoes can Sadokat but if she has $12

Solve the equation 8x - 12=5x+15

The ratio of the number of adults to students at the prom has to be 1:10. If there are 477 more students than adults how many adults have to attend?

Vince has 16 beads how many different arrays can vince draw to represent the total numbers of beads he has

What is 29 decreased by 20