Mrs. Delgado purchased notebooks at 2 for $5.00 and pens at $2.00 per package. She spent $19.00 for a total of 8 items.
Which system of equations below could be used to find n, the
number of notebooks, and p, the number of packages of pens,
that Mrs. Delgado purchased?

left 3, up 4

step-by-step explanation:

just count the values of x & y of the vertex of the graph and see how many units in the x and y direction will get you from the f(x) graph to the f(x) graph

answer: 323 is how many she has ☃☃⛄❄

step-by-step explanation:

explanation:

infrared radiation has wavelength in the range between 700 nm and 1 mm. lets' convert these values into scientific notation, keeping in mind that:

let's start from the lower value, we have:

(we moved the dot two places to the left, so we increased the exponent by 2 units, from -9 to -7)

the higher value is:

so, the range of wavelength of infrared radiation is:

it would rotate about 180 degrees.