Dana spent $789 on 21 presents for her grandchildren. Which expression uses compatible numbers to estimate the amount she spent on each
present?
OA) 20 800
OB) 20 700
OC) 20 750
)
OD) 21 840

Prove the divisibility of the following numbers: 25^9 + 5^7 is divisible by 30.also, read as (25 to the power of 9) + (5 to the power of 7) is divisible by 30. blank x 30what is the blank? ( it should be expressed in exponent form)

What is the length and width of a 84.5 square foot rug? will mark

For the chance to be team captain, the numbers 1-30 are put in a hat and you get two chances to pick a number, without replacement. which formula correctly shows how to find the probability that you choose the number 1 and then 2?