9x plus 7 equals 3x plus 8

The equation y = 6.3x + 67.4 is the equation of a linear model in a scatter plot comparing the ages of boys between 2 and 10 years old (x) and their average heights in centimeters (y). What is the average height of a 5-year-old boy? 98.9 cm 78.

True or false? If two angles are congruent then the two must have equal measures.

if you invest $1,500 today in a bank that gives you a 5 percent annual interest rate, which of these items can you buy in two years? A. electronics worth $1,650 B. fitness equipment worth $1,700 C. a holiday package worth $2,000

What is the awnser of slope-intercept for 9x=3-3y

Kim increased her typing speed from 56 to 63 words per minute. What was the percent of increase in her typing speed? A. 7% B. 11.1% C. 12.5% D. 17%

Which of the following are correct for the expression - (-7) ? Check all that apply. A. Minus minus 7 B. The opposite of negative 7 C. Minus negative 7 D. The opposite of minus 7 E. The opposite of 7 Negative 7

A quater of=3 what will be the answer

Sarah bought a car for £2300. She later sold the car for £1840. What was her percentage loss?

Mark withdrew $25 from his bank account write this amount as a integer

Mary open a bank account and deposits $16.00. Every month she deposits $30.00. Which expression shows the amount of money in her account after m months?