2 (9a-7) I have to simplify this idk why to do

Ten less than double a number is the same as seven times the number. Find the number

What is the better estimate for the height of a desk, 1 meter or 1 kilometer

Rhe length of a rectangle is 4ft longer than twice the width if the perimeter is 92ft. find the length and width of the rectangle

If 3^2x+3 = 3^x+5what is the value of x? 2 3 4 6

One pipe can fill a pool in 9 hours. Another pipe can fill the pool in 6 hours. How long would it take them to fill the pool if they were working together?

We conduct a study to determine whether the majority of community college students plan to vote in the next presidential election. We choose a significance level of 0.05.

Francine is making a necklace that has 1 blue bead for every 6 white beads. how many white beads will she use if she uses 11 blue beads.

If one full rotation contains 360 degrees how many are in half rotation and in 3/4 of a rotation

The income distribution in a county is a normal distribution with a mean income of $10,000. The top 2.5% of the wage earners earn $18,000 or more.

Adriana writes the equation y = 2x + 4 to represent a line on a graph. Henry writes an equation that has a y-intercept that is 1 unit lower on the graph but has the same slope as Adriana's line.