Is this correct? 90 is one tenth of 900

Last Thursday was costume day at Nicole's school. 609 out of the 870 students at the school wore a costume. What percentage of the students wore a costume?

Two buses leave seattle at the same time and travel in opposite directions. one bus averages 55 mi/h and the other bus averages 45 mi/h. when will they be 400 mi apart?

Kate found a new knitting pattern she's been wanting to try. It makes a rainbow-striped 60-inch scarf. Last month, it took her 14 hours to knit her little sister a 30-inch scarf.

Enter the mean of the data 9,5,7,7,12

Solve the following equation for "h": A=bh/2

A 26-year-old male is interested in purchasing life insurance. Using the table, determine what the annual premium for a 20-Payment Life insurance policy, given that the face value of the policy is $89,657.

Comparing decimals 0.49 to 0.94 is that equal? or 0.94 more ... ?

What is the median of this set of data? 100, 102, 103, 106, 109

Already bought 854 acres of land for development if 62 acres of his purchase is reserved for a park how many 3 acres building lots are able for sale

Which equation describes the relation indicated by the table? X = - 2,0,1 y=-6,2,6 a. y=4x+2 b. y = 2x + 4 c. y = 2x-2 d. y = x-4