Last year, the world produced 3.5 billon tons of cement and that amount could increase by a billion tons by year 2050. Express the amount expected in 2050 in scientific. Notation and then tell me how much larger it is compared to 1.5 times ten to the seventh power

Tessa bought stock in a restaurant for $253.00. her stock is now worth $333.96. what is the percentage increase of the value of tessa's stock? a.) 81% b.) 32% c.) 24% d.) 76%

Adeli owner keeps track of the to-go orders each day. the results from last saturday are shown in the given two-way frequency table. saturday's to-go deli orders in person by phone online total pick up 38 25 31 94 delivery 35 28 34 97 total 73 53 65 191 what percent of the to-go orders were delivery orders placed by phone? a. 14.66% b. 38.41% c. 28.87% d. 52.83%

The price of a car has been reduced from $19,000 to $11,590. what is the percentage decrease of the price of the car?