Questions in mathematics

Questions in mathematics

[Done] If Jo is supposed to read one-half of a 100-page book for an English assignment and she has finished 38 pages, what percent of the assignment does she have left to do? Please answer and explain.

[Done] What is 194 in radical form?

[Done] Simplify the expression: \((6p + 4q)(-2p + 9q)\)

[Done] Michelle needs to save $7,000 for school in the next two years. She found a bank that offers a 9% interest rate compounded annually. What does she need to deposit at the beginning of the year to have enough money for school?

[Done] How do you solve \(2x^2 - 32 = 0\) using square roots?

[Done] Sam borrows $1,000 from a bank that is charging eight percent simple interest per year. If he pays the loan back in six months, how much interest will he pay?

[Done] Select the x-coordinate of the vertex of the parabola defined by the function [tex]f(x) = -7x^2 + 3x + 1[/tex].

[Done] A small grill can hold two hamburgers at a time. If it takes 5 minutes to cook one side of a hamburger, what is the shortest time needed to cook both sides of five hamburgers?

[Done] At a banquet, the ratio of hot drinks to cold drinks was 5 to 3. A total of 400 drinks were served. How many drinks were hot?

[Done] How do you find 60% of 20?