Justin case has four times as many dimes as he has nickels in his pocket. If the total value of the change is $2.70 how many of each coin does he have? ( HELP PLEASE)

Which mathematical statements are true? 1) if 3 is an odd number, then 3 times 3 is an even number. 2) if 6 is less than 7, then 4 is greater than 7. 3) six is divisible by 3, and 10 is a multiple of 2. 4) the average of the data is greater than the largest value in the data, or it’s less than the largest value in the data. 5) the slope of a linear graph is its rate of change, and the graph’s y-intercept is the initial value. 6) if an equilateral triangle has equal angles, then all its angles will measure 45°.

Find two consexutive odd integers such that the sum of their square is 650

Which number line correctly shows 0.8 + 0.3?