Use mental math to find the missing number. 280 - 70 = 28 tens = 7 tens =
280 = 70 = 28 tens - 7 tens =

answer: i think the answer is etheir c or d but i don't know which one but have a good day!

step-by-step explanation:

percentage - 25%

probability - 0.25

we know,

total amount of students in class = 20

total boys = 10

total girls = 10

no of girls who wear glasses = 10/2 = 5

probability of choosing a girl with glasses is =

number of girls wearing glasses/total number of students in the class = 5/20

thus, percentage of selecting a girl wearing glasses will be

= 5/20 × 100

= 5 × 5

25%

therefore,

probability will be 0.25

happy to

pls mark as brainliest

you can first factor out the n to get n(1+5). we know that 1+5 is 6, so we just have 6n.