Is 4/5 greater than 0. 75

Solve: 3x-y = 4 2x-3y = - 9

The product of 8 and b is less than or equal to 13

In a group of Year 9 students, the ratio of boys to girls is 9 : 7. There are 4 more boys than girls in this group. How many students are in this group altogether?

78.3 + - 17 evaluate the expression

A set of data has a normal distribution with a mean of 49 and a standard deviation of 8. Find the percent of data within the following interval. from 33 to 65.

Does the expression (x^3-1) / (x^2-1) simplify to x?

8/b=90 what is the solution

How many real solutions does the system have? y=-3x-3 y=x2-3x+5

1. Solve the quantity x minus 5, end quantity, over x, minus 1, equals the quantity x plus 3, end quantity, over x. a. 8 b. 0 c.-1 d.-8 2. Solve 2 over 8 times x squared equals 1 over 8 times x. a.-2 b.-1 c. 1 d. 2 3.

What is an opposite like in negatives and stuff?