Arocket took off at a speed of 7.9 kilometers per second. how many miles per hour does the rocket travel if 1 km is 0.62 miles?

With #! i’ve tried to figure it out but i can’t.

55 bridesmaids want to make 325 325 decorations for a wedding. each decoration takes about 212 2 1 2 minutes to make. which response gives the best estimate for the amount of time each bridesmaid will spend making decorations?

Acoin bank containing only dimes and quarters has 12 more dimes than quarters. the total value of the coins is $11. how many quarters and dimes are in the coin bank?