Massive ACT Prep

For $$x\ =\ -5$$  , find the value of  $$4x^2-11x$$  

A science class has 8 juniors and 4 seniors. The teacher will randomly select 2 students, one at a time, to represent the class in a committee at the school. Given that the first student selected is a junior, what is the probability that the second student selected will be a senior?

Which of the following expressions is equivalent to  $$4\left(x+2\right)+3\left(2x-1\right)$$ ?

What is the least common denominator of the fractions  $$\frac{4}{35},\ \frac{1}{77,}$$  and  $$\frac{3}{22}$$  ?

The average weight of 10 boys is 77.0 pounds. If the youngest boy is excluded, the average weight of the 9 remaining boys is 78.0 pounds. What is the weight, in pounds, of the youngest boy?

What is the 358th digit after the decimal point in the repeating decimal  $$0.317831783178...$$  ?

In scientific notation, 0.00326 = ?

When a plane takes 52 minutes to fly 196 miles, about how many miles per hour does it average?