WRITE IN STANDARD FORM USING AS A FRACTION. SHOW STEPS FOR ALL, WILL GIVE BRAINIEST ANSWER AND 15 POINTS

1.10^-4

2. 10^-7

3. 10^-3

4. 10^-2

Δabc is dilated by a scale factor of 3 with the origin as the center of dilation to form δa′b′c′. the slope of is -1.2. the length of is p units, the length of is q units, and the length of is r units. the slope of is . the length of is units.

The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a mean of $235 and a standard deviation of $20. according to the standard deviation rule, how much did almost all (99.7%) of the students spend on textbooks in a semester?

How many solutions does the nonlinear system of equations graphed below have? a. one b. zero c. four d. two