Counting codes. How many 3-digit telephone area codes are

possible if the first digit cannot be 0 or 1?

7 (4p) i dont get it

Linda received a credit card through the mail. The interest rate charged by the credit card company is 24.9%. If she maintains an average balance of $2,400 owed on the card, how much will she have paid in interest after one year?

Write a formula for the area A of a parallelogram.

Y=-5x+1 y=3x-2 is (3,8) a solution of the system

Which value is the best estimate of 26% of 259?

The measures of the three angles of a triangle are given by 3x + 1, 2x - 3. and 9x. What is the measure of the smallest angle? A 13° C 290 B 23° D 40°

What's the equation of a line that passes through the x-intercept at 4 and the y-intercept at - 2

The scale on a highway construction drawing is 0.5 inches for every 45 miles. If the drawing shows the highway is 4 inches long, how long is the actual highway?

Write a positive or negative integer that represents the situation. You withdraw $42 from an account.

Jalen wondered whether the same method would work with money can you add $45 + $78 by adding the tens first then the ones?