Acab company calculates cab fares using the expression 1.50d + 3, where d is the distance traveled in miles. if a passenger has to pay a $21 fare for a ride, which number from the set {9, 12, 15, 18} is the value of d?

9

∆red ≅ ∆ by rule will give brainiest if possible

The two square pyramids are similar. find the total volume of both pyramids if the ratio of their surface areas is 9/16

Worth 100 points need the answers asap first row -x^2 2x^2 (x/2)^2 x^2 x is less than 2 x is greater than 2 x is less than or equal to 2 x is greater than or equal to 2 second row -5 -5/2 4 5 •2 is less than x& x is less than 4 •2 is less than or equal to x & x is less than or equal to 4 •2 is less than or equal to x& x is less than 4 •2 is less than x& x is less than or equal to 4