Need kendra is making a large salad for a party. she buys lettuce for $2.25 per pound and tomatoes for $2.65 per pound. she spends at least $8. let x represent the number of pounds of lettuce that kendra buys. let y represent the number of pounds of tomatoes that kendra buys. which inequality represents this situation? a. 2.25x+2.65y> 8 b. 2.25x+2.65y< 8 c. 2.25x+2.65y≤8 d.2.25x+2.65y≥8

 The correct option is

(D)

Step-by-step explanation:  Given that Kendra is making a large salad for a party. She buys lettuce for $2.25 per pound and tomatoes for $2.65 per pound. She spends at least $8.

x represent the number of pounds of lettuce that Kendra buys and y represent the number of pounds of tomatoes that Kendra buys.

We are to select the inequality that represents the situation.

We have

total amount of money that Kendra spends on lettuce is given by

and the total amount of money that she spends on tomatoes is

Therefore, the inequality can be written as

Thus, option (D) is CORRECT.

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: