Me ayudan por favor con estos ejercicios de álgebra con la 15, 16 y 17

Scale factor of 2 is used to enlarge a figure as shown below the area of is 18 in.²

The tile along the edge of a triangular community pool needs to be replaced? ?

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%