During his vacation, Dalyn rents a small boat from a rental service that charges a flat fee of $30 plus $10 per hour (including taxes). The total charge comes to $90. Which equation can be used to calculate the number of hours, 2', that Dalyn rents the boat?
A 10x + 30 = 90; 6 hours
B 10 (x + 30) = 90; 5 hours
C 30% + 10 = 90; 6 hours
D 30 (x + 10) = 90; 5 hours

:24% of students in a class are girls. if there are less than 30 students in this class, how many students are there? how many girls are there?

Aregular pentagon with a perimeter of 21 inches is dilated by a scale factor of 5/3 to create a new pentagon. what is the perimeter of the new pentagon?

❤️ (geometry) does the construction demonstrate how to copy an angle correctly using technology a) yes; the distance between points a and f was used to create circle h b) yes; the distance between points f and g was used to create circle h c)no; the distance between points a and f was used to create circle h d) no; the distance between points f and g was used to create circle h