Yolanda's Flower Shop sells long-stem roses for $5 each. In addition, the shop charges a $15 shipping fee. How many roses can Santo purchase if he
plans to spend $90?

15

Step-by-step explanation:

5x + 15 <= 90

5x<=75

x=15

15 roses

Step-by-step explanation:

90 (Amount Santo wants to spend)

15 (Shipping fee)

You first subtract Shipping Fee from the total amount Santo wants to spend

90-15=75

Next it's time to figure out how many roses he can buy with the $75

Each roses is $5, so you divide the left over money after shipping by the price of the rose.

75÷5=15

1

step-by-step explanation:

it's the only multiple of both and the least

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: