NEED HELP NOW A histogram is being made for the following set of data. If the length of each interval is going to be 7, what will be the frequency of the first interval?

78, 92, 98, 87, 86, 72, 92, 81, 86, 92

A. 3
B. 1
C. 2
D. 4

If you could also explain how you got you're answer that would also be nice.

Choose the graph that matches the following system of equations: 7x + 2y = −6 6x − 7y = 21 a line includes points negative 2 comma 4 and 0 comma negative 3. a line includes points 6 comma 2 and 0 comma negative 3 a line includes points 0 comma negative 3 and 6 comma 2. a line includes points negative 2 comma 1 and negative 3 comma 4 a line includes points 0 comma negative 3 and negative 1 comma 4. a line includes points 0 comma negative 3 and negative 1 comma 3 a line includes points 0 comma 3 and negative 1 comma negative 3. a line includes points 0 comma negative 3 and negative 2 comma 4.

Find the area of the unshaded square

30 ! the graph shows the number of siblings different students have. select from the drop-down menus to correctly complete the statement.